Archive for the 'energy' Category

On Science and Politics

No doubt you’ve been aware of the recent debate that has been raging about whether or not the scientific case for climate change has been exaggerated by various scientists, in the light of the content of a long series of emails. It’s all over the news, and so I am sure I don’t need to point to all the news stories, commentaries, and - sad to say - convenient distractions that have been constructed on the basis of them by the climate change deniers, especially those with vested interest in the status quo. (Follow the climategate tag at The Intersection for some of the links, and a sampling of the discussions, and do look at the Nature editorial for example.) This matter, and the debates it has reignited, is of course a major issue in view of the upcoming work to be done by the leaders of the world’s major economies in Copenhagen later this month.

A key point here is to realize that when science intersects with politics - especially the kind of rabid, personal, dirty politics that surrounds the climate change issue - the grey areas that are already present in honest science can get further muddied by the fact that scientists are human beings who don’t always act perfectly in all situations, and whose actions (well emails suggesting certain actions) can also be subject to question (especially when we don’t have all the facts concerning context, etc, on several of the emails which seem very ambiguous to me).

There are two things to keep in mind. The first is that there is a global community of scientists at work here, with so many different approaches, motivations, contexts, data sets, and so forth that have been brought to bear on the matter of climate science. To think that a series of emails from some small subset of them (that may or may not suggest that data have been presented unevenly, for whatever reasons) can undermine a huge body of work and conclusions from an entire worldwide scientific community is to seriously misunderstand what science is about, and how it works. jenga_gameIt is not a tall, tottering late-stage game of jenga, where there’s a danger that at any moment one of the little wooden sticks will wobble and bring the whole game crashing to the ground. Instead, it is a highly interwoven collection of findings, ideas, analysis, and conclusions that are supported by a wide variety of pieces of evidence, all arriving at the same striking picture - Our world is changing fast and our actions are highly relevant to these changes both past, present and future. Instead of a jenga construction, think more of a woven tapestry. Pulling out a few threads changes it a little bit, but it does not make the whole thing unravel and destroy the picture. Or, if you like, think of a pyramid structure, like the lovely Pyramid of the Sun at Teotihuacán in Mexico (image borrowed from here). Continue reading ‘On Science and Politics’

They Couldn’t Car Less

As you know (maybe), for environmental (both local and global) and other reasons I’m not a fan of routine unnecessary car trips, and so I walk, bike, and use public transport a lot. My car is mostly only used on the weekend. This sort of declaration usually results in blank stares, subsequent treatment as a leper (or worse, in many LA circles, - poor!!), serious inquiries as to whether I was convicted of DUI, comments that this is impossible in LA, admissions from locals who’ve lived here for umpteen years that they’d no idea that there was a subway (that has changed slightly in the lastmelba_thorn_by_diane_meyer few years… now at least they know, but typically they’ve no idea where the stops are), and so on and so forth. I will admit to getting annoyed when I see announcements for events and locations that go to lots of trouble to give driving and parking instructions and never mention the subway stop or bus lines that might work for some as well. (Right: Artist Melba Thorn, photo by Diane Meyer for an exhibition on the issue, to be discussed below. Ironically, (at the time of writing) the exhibiting gallery also only gives driving and parking directions on their site. Isn’t that rich?)

Anyway…. you know all this from reading the blog. Check the archives for posts and discussions on a variety of aspects. Here’s part of the executive summary of my main point, and then information about a new exhibit follows after:

Continue reading ‘They Couldn’t Car Less’

My Achilles Heel

Heat. Following is a little bit of a whine. You’ll be even less sympathetic once you read the postscript, but such is life. Once the temperature gets up to a certain point, I can’t think any more. Well, not at the level needed to earn my living, if you see what I mean. Long periods of concentration start out well, but usually just turn into a nap. Not good at all, really. For the second or third day running we’ve had super hot temperatures with little movement of air to ensure a decent amount of throughput. This is not always unworkable, since one can simply nap during the day, do tasks that don’t require much sitting and thinking, and then work in the very early morning hours, but this time around there are two additional effects that ruin that approach.

fires_with_downtown_laThe first is that the heat has been carrying on into the night (as opposed to dropping away rapidly in the evening as is the usual pattern), and the second is that there are two huge fires nearby, making the air a bit… chewy. (Left is a shot I took of downtown Los Angeles from the South showing the huge clouds of smoke from the La Canada and Altadena fires in the San Gabriels’ foothills in the background. From some views it looks like there’s been a small nuke detonated. Anyone remember 24 a few seasons ago? For some maps of the fire’s progress see here, and a view from one of the Mount Wilson observatories is here*.)

Both of these make for less than great sleeping conditions, and the feeling of lack of Continue reading ‘My Achilles Heel’

Summer Reading: Sheril on Science Friday

unscientific_america_book-coverI don’t know if you’ve noticed, but Sheril Kirshenbaum and Chris Mooney have written a book, “Unscientific America”, with an excellent discussion about science literacy. You know from reading here that this is a favourite issue of mine (look under categories such as science and society), and by far the primary reason I blog, and do the various other activities I mention such as appearing on TV and radio shows, consulting for film, theatre, TV, etc, contribute to popular level articles, making films, and other things. It is vitally important, if we are a truly democratic society, for all to participate in the conversations we have about science - whether it be about issues to do with medicine, lifestyle, environment, energy, or just for its own sake: it is part of our culture. Sadly, science (and scientists) is still on the margins of the national conversation - people are afraid of it, giggle about how bad they were at it at school and then decouple from the conversation, mostly only pay attention to bleak or incorrect pictures of it in the media and entertainment (or for political gain), and so on and so forth.

What Sheril and Chris are doing in the book is examining the extent to which this Continue reading ‘Summer Reading: Sheril on Science Friday’

Thank Goodness There’s a Physicist in the Cabinet

…to deal with vital questions like this*:



-cvj

*Thanks Moh!

Earth Hour!

At 8:30pm tonight, your local time, earth hour begins. Have you decided? What are you going to do?!

earth_nasa_picture

Vote Earth.

-cvj

Bikes and the City, 2

blog on a bikeYou’ll notice that I often talk about alternatives to driving everywhere in Los Angeles. Sometimes I talk about bikes (see for example the last post) as part of a range of options. Well, in December last year a student at USC doing a project in journalism (Lauren Lee - she’s at the Annenberg School) did a short report on bikes and the city for her project. (See also some of my posts about this issue, such as here, here, here, and several posts in the list at the bottom of this one). In her research, Lauren found this blog, gave me a call, and I agreed to make a few comments to camera for her as part of her larger report on some of the changes that are happening here in Los Angeles. (She also interviews Adam and Josef Bray-Ali, owners of the Flying Pigeon LA bike shop (hey, they have a blog)- a bike that might interest you.)

I should preface it with some remarks of my own. It is a nice report, but she edited out all the things I said that I think get at a central and key point. (To be fair, she was trying to make a two minute report, and I was babbling on enough for a Spike Lee four-part documentary…) I’m not advocating that everyone cycle everywhere they need to get to. Instead, I’m trying to get across the idea that cycling works really well in combination with the public transport system that already exists. One of the reasons people give most often for not using public transport is that the bus or subway stop is not quite close enough to where they want to get to, and/or close enough to their home. Leaving aside the cases where that sometimes this means “more than one block” or “not right next to my garage”, I’m trying to get across the Continue reading ‘Bikes and the City, 2′

I’m Not The Only One…!

Well, hey! I’m not the only one:

another folder on subway

Spotted while on my way to see Coraline in 3D at the Arclight, which by the way is quite a treat!

(Uh… in case you’re wondering, I’m talking about folding bikes on public transport in Continue reading ‘I’m Not The Only One…!’

Light Thoughts

Last night, for one reason or another, I decided on the spur of the moment to head to the beach, in order to wander there with the darkness clinging to me while I faced the bracing wind and cleared my head of many things. Although not quite like walking, for example, the Northumbrian coastline, even this part of the Pacific can be wonderfully restless, rugged, and alive when there are strong storms in the air, as is the case right now in the area.

santa monica led ferris wheel

On my walk, heading Northwest, I saw the Santa Monica Pier in the distance, with its new (as of last Summer) Ferris Wheel sporting some 160000 LEDs (I read this - did not count them) and putting on a light show. It is interesting to look at for a number of reasons. They’ve programmed in a lot of patterns that it cycles through, some of which are nice, but the most interesting thing to me (and not depicted in my Continue reading ‘Light Thoughts’

The Keeling Curve

keeling curveToday on NPR’s Morning Edition they played a piece by Madeline Brand that aired in 2007 about the Keeling curve, and the man behind the curve, Charles David Keeling. As you may know, the Keeling curve (above) is a striking demonstration of the steady increase in the concentration of carbon dioxide in the atmosphere, as measured from one location (on top of Mauna Loa in Hawaii) by one very simple method over almost 50 years.

It is a lovely story of dedication and determination that resulted in a simple, striking, Continue reading ‘The Keeling Curve’

Another Physicist in the House

With more refreshing words about what he thinks science is, and the role science can play in shaping society and steering the country forward, Barack Obama announced several key science posts today. One of them is a physicist, by the way. (”Excellent…”, cvj rubs hands together with a gleam in his eye, “…all going according to plan.”)

Here’s a YouTube video of the announcement:

From an AFP piece by Maxim Kniazkov:

Continue reading ‘Another Physicist in the House’

Physics Nobel Prize Winner in the Cabinet

I just learned this* - Steve Chu (Nobel Prize for Physics in 1997 - see here) has been nominated as Energy Secretary in the new Obama administration. I find that sort of interesting and exciting. An actual Physicist in charge of energy. And at this crucial time. Story here (for example).

-cvj

*Thanks Jeff!

Science and the New President

Last week the Guardian did a special podcast about Barack Obama’s science policies, and the challenges that lie ahead for the new administration. It’s actually rather good (at least the parts I’ve heard so far - I’m listening to it in pieces while travelling) and I recommend it. They have lots of guests, many of whom you’ve maybe heard of (Lesley Stone, Martin Rees, Diana Liverman, Chris Mason, P Z Myers, Lawrence Krauss, Martin Barstow), and the issue is explored from several angles, from climate change, through stem cells, to the space program.

Continue reading ‘Science and the New President’

Scientists on Presidential Choices

From Janet Raloff’s post at Science News, I learned a bit about the sixty one Nobel Laureates signing the open letter to everyone about Obama’s science policy. I quote (see her post for more):

Continue reading ‘Scientists on Presidential Choices’

Metro Ads

I’m enjoying the new metro ads that are up all over the city. Are you? They are going for the more direct and immediately pragmatic point in an effort to encourage people to leave their cars behind. (You’ve read my thoughts about that before.) Here are a few I spotted over the last few days (click for larger view):

metro ad in la metro ad in la metro ad in la

The style reminds me of the HSBC ads that you see in the UK, again comparing two Continue reading ‘Metro Ads’

Answers to the Questions

Huh. Well, it seems that both presidential campaigns have finally got around to answering the questions about science and science policy that the ScienceDebate2008 team prepared a while back. (The team’s banner line on all this is “Who will be the best President for America in a science-dominated world?”. Who indeed. (In case you’re wondering, the “best” was in place when there were several more contenders.)) I hope it is more than just hot air and empty promises. Right now, it’s Continue reading ‘Answers to the Questions’

Some Science With Your Politics

Well, there’s all sorts of rhetoric on all various matters from the main presidential candidates, and there’s still a long way to go until November. It’s nice to hear a bit of chatter about global warming, gas prices, research into alternative fuels, cars with higher efficiency, and other issues that have a high degree of science playing a role in shaping our decisions about our policies and actions, in all aspects of society. (Although there is some occasional mention at some points at state level, it would be nice to hear a lot more about concerted thoughts about public transportation infrastructure, but perhaps that’s just way too much to ask in a society still rather naively obsessed with individualism at all costs.)

So what are the official positions of the candidates on science, across the board? Well, Continue reading ‘Some Science With Your Politics’

Science Cartoon Contest!

The Union of Concerned Scientists is running a science cartoon contest* (mostly political cartoons, really), and would love you to vote. Here’s one:

cartoon from the Union of Concerned Scientists 2008 contest
Continue reading ‘Science Cartoon Contest!’

This is a Tough One

blog on a bikeWith the rise in gas prices, I’ve been seeing more and more people on the streets, walking and cycling, and more people using the subways and the buses. While I know that it has been producing real hardship for some people, I have to admit that it has been fantastic to see this change. So many streets and street corners have come to life. It has always been clear that higher gas prices would have this positive change, and I’ve hoped for it in some ways, but I wish that it had not come about in this way. I’d rather that it was because we’d managed to break out of a political climate so selfish and naive that nobody could propose raising taxes to an extent that would simultaneously give an incentive for people to use their cars less while at the same time providing much needed revenue with which to improve public transport infrastructure. Sadly, instead we’re just having high prices with nothing to show for it but a bunch of expressions of anger, while the oil companies and producers get fatter and fatter.

When I say I’d been hoping for higher prices, I need to clarify. I’m completely aware of Continue reading ‘This is a Tough One’

No Debate on Science

Sheril talked a little bit about the lack of a debate on Science by the presidential hopefuls, and pointed to a number of articles on the matter. Recall (from my earlier posts and many other sources) that she is one of the movers and shakers behind ScienceDebate2008. The candidates simply punted the issues.

Shame really. The Franklin Institute’s good china was all laid out and the space made ready to host the debate, and several were hoping it might really happen… But it was politics as usual on all sides, with lots of silliness, and pandering to the much more powerful “Faith” constituency.

Or, as Bob Park put it in his excellent “What’s New” column of the 11th April:

NO SCIENCE DEBATE: CANDIDATES WILL DEBATE JESUS.

Excellent title! He goes on to say:
Continue reading ‘No Debate on Science’

Science Debate 2008 - Closer to Reality

So Chris and Sheril have announced the next step in the journey to a real debate about science issues of note that intersect with the current political sphere. And they’ve come a long way in a short time! Here’s some of what they said in a recent post:

ScienceDebate2008 is now co-sponsored by the American Association for the Advancement of Science, the National Academies, and the Council on Competitiveness. We were looking at venues, and finally settled on an offer from the Philadelphia-based Franklin Institute–named, of course, after one of this country’s first and greatest scientists. We can’t think of a more appropriate venue.

And guess what?! They’ve actually invited the candidates: Hillary Clinton, Mike Huckabee, John McCain, and Barack Obama.

So the next step is to get the event (they suggest April 18, 2008) taken seriously by Continue reading ‘Science Debate 2008 - Closer to Reality’

Political Science

Ok, a sidestep into politics for a short, but important moment.

With all that’s going on with all the presidential debates and press conferences and other appearances, has anything struck you as a major topic (or class of topics) that is simply missing from the national discussion? A topic that affects our lives in so many ways, and helps shape our futures in a most profound manner?

I’m thinking of science. I’m thinking of it in all the forms in which it intersects with politics - where decisions made by the president involve policy directly related to science (climate change and stem cell research are two of the most obvious), scientific research (both basic and applied), safety and security issues (consider the EPA, Katrina and other natural disasters), resources (the ongoing and coming battles about water sources, for example, pollution and air quality go here too, as well as under other headings), and energy (well, take your pick of example issues there). There’s also science education, on which there ought to be coherent effort for many reasons Continue reading ‘Political Science’

Fourth IPCC Report

Don’t forget to look at the latest IPCC report released today! Full details including helpful digests and summaries can be found here.

News reports and discussions can be found all over the place. (Update: there’s an NPR report, with audio, here.) A report on the BBC by Richard Black begins:

United Nations Secretary General Ban Ki-moon has challenged governments to act on the findings of a major new report on climate change.

Launching the latest report from the Intergovernmental Panel on Climate Change, he said real and affordable ways to deal with the problem existed.

The IPCC states that climate change is “unequivocal” and may bring “abrupt and irreversible” impacts.

Mr Ban urged politicians to respond at a UN climate change conference in Bali.

“Today the world’s scientists have spoken clearly and with one voice,” he said. “In Bali I expect the world’s policymakers to do the same.”

Continue reading ‘Fourth IPCC Report’

I’ve Got Next

Ok. So I want to make this post timely, but it means that it will begin to let a cat out of the bag. We’ll see how much I can save for a later post as I write1.

So, as I walked to the subway this morning (yes, they have one in LA), I went through my little checklist of things I take on self-assigned assignments of this sort.

Notebook for scribbling: Check
Pen for scribbling: Check
Camera: Check
Phone (now with decent back-up camera): Check
Spare battery for camera: Check
Decent excuse/reason for being spectacularly late: Check
Water: Check
Good footwear for endless walking back and forth: Check

By now you get it. I’m either doing one of my parade reports, or perhaps a street fair/party, museum exhibit, or some random science fair, object or installation or other. Yes, but which? Well, apparently I was going to the future:

nextfest visit photo

The scene: The Los Angeles Convention Center. The event: The NextFest, brought to Continue reading ‘I’ve Got Next’

The Man of Tomorrow?

[Updated with a bit of video!]

Earlier this week I went for a walk with Nick Halmagyi to chat about physics, and since he had not been down to the meadows and gardens over by the neighbouring Aspen Institute, we wandered down that way. It was just after lunchtime, and a very hot day, and as we got near the Institute, we diverted away from physics so that I could tell him briefly what the significance of the Aspen Institute is. I explained that it was an important “think tank”, host to thinkers in the humanities, sciences, and diplomats, presidents, ex-presidents, and other dignitaries, who come and think great thoughts about the problems of the world. Well, let me use their own words from their website:

The Aspen Institute, founded in 1950, is an international nonprofit organization dedicated to fostering enlightened leadership and open-minded dialogue.

As an example, I explained, it is probably the sort of place that Al Gore might have come to in order to think deeply about the environmental issues he champions. It is nice that the Aspen Institute is right next to the Aspen Center for Physics, and the two organizations, while now independent (but the Center actually grew out of the Institute, see here) sometimes work together on various matters including public outreach. The public lecture I gave here last year as part of the Heinz Pagels Memorial Lecture series (see e.g. here and here), for example, was actually over in the Paepke auditorium, one of their buildings.

We approached the main grounds of the Institute, near their residence buildings, and were greeted by a most frustrating -and ironic- sight. Their sprinkler system was fully on, spraying water unnecessarily into the air and onto the asphalted walks, with some making it onto their lawns, where even there it would mostly evaporate (in addition to aiding the hot sun in scorching the grass somewhat). For once, I did not have my camera and so cannot share this horrible sight with you. For a moment it was as though I was back in LA, but this was Aspen, where everyone talks about the environment. Then I remembered - everyone talks about the environment. At the same time, there are more and more SUVs every time I come here (rental companies even try to force SUVs on you when you try to rent a regular compact car - did you read my story of that last year?), more and more land seems to be cleared to build ever-larger houses, and so forth. On the other hand, bicycle use is very high here, there’s an excellent free bus system, an enforced reduction of individual car access to the Maroon Bells wilderness area, and I imagine several other worthy environmental efforts that I have not seen are being made. So it is a tale of two communities and mind sets. It’s complicated, as with any populate. But you’d have thought the Aspen Institute would be “fostering enlightened leadership” by not watering their lawns and (sidewalks) with vast amounts of water at the maximally worst time of day to do so in terms of effectiveness. (Frankly, given the environmental disaster most lawns are, one could go further and hope that in the spirit of leadership, they’d turn more of their expanse of lawns into other use, perhaps expanding the excellent wildflower garden they have in one corner, or letting more of the surrounding meadows repopulate the grounds. It could be rather beautiful.)

wild flower gardens at aspen institute

Anyway, we shook our heads at the irony of the sight and we wandered off toward the river, continuing our chat about matters in other dimensions (no, really). The next day I came back at that same time to check the sprinklers again (with camera), since such systems are often on timers, but had it rained very heavily the previous night and so -happily- it did not seem that the sprinklers had been used.

On Wednesday I returned once more. The sun was overhead and strong again (not as much as Monday) and the main system was not on. But once again I noticed signs of watering, and saw a smaller component of the lawn being watered by a hose-driven system. I now think that it might be that they were sprinkling (well, gushing) on Monday (and partly on Wednesday) in the mistaken belief that pouring water (and into the air, where it rapidly evaporates) on the lawn while the sun is baking it will somehow help, and they did it on an ad hoc basis, but I can’t be sure. Either way, it is a terrible waste of water resource by an organization that is committed to leadership in matters of importance, such as the environment.

Then I noticed that many people wearing name badges were heading from the Institute toward the direction of the auditorium and the Aspen Music tent. This fit with the next deliciously ironic thing: Al Gore was going to be talking! He’d been at the Aspen Institute (I’d no idea of his presence or the event until a radio announcement on Wednesday morning), and the sprinkler matter, this was remarkable. Convenient, one might say.

It turned out that it was not taking place in the Paepke auditorium, as I thought it Continue reading ‘The Man of Tomorrow?’

The Future is Orange

I don’t know if you’ve already heard about it, but the first commercial solar energy plant, (located near Seville, Spain) was inaugurated a while ago (30th March). It is an 11 Megawatt plant, called PS10 and:

solar tower…the project produces electricity with 624 large movable mirrors called heliostats.

Each of the mirrors has a surface measuring 120 square meters (1,290 square feet) that concentrates the Sun’s rays to the top of a 115 meter (377 foot) high tower where a solar receiver and a steam turbine are located. The turbine drives a generator, producing electricity.

I got that quote from an excellent article here. You can read a lot more there about some of the future plans of the EU for solar power there. Go directly to the website of the company that built it, Solucar, for more information and images of the plant.

solar mirrors

The 625 mirrors with the central tower, all glowing from the reflected sunlight, is quite Continue reading ‘The Future is Orange’

Carbon

carbonNPR’s Robert Krulwich does it again. As part of a long special series that NPR has begun about carbon and climate change, he starts out with a really really good piece (with his usual level of humour and sound effects - and graphics on their website) on carbon. What is it with carbon that makes it such a special element to us, our biology, our planet? What is it about carbon that makes it so happy to stably bond into chains (storing energy), and so stably that we get huge reserves of energy stored underground in the form of fossil fuels (oil, etc).

Continue reading ‘Carbon’

Light Seen Down Under?

compact fluorescent bulbincandescent bulbI’ve been meaning to post about this for a few days*. It has since made it to rather high visibility in the news, I’m pleased to see, generating a lot of interesting discussion. The Australians (another nation not part of the original Kyoto agreement, notably) have pushed ahead on the issue of trying to legislatively encourage (shall we say) the use of compact fluorescent light bulbs over the more wasteful traditional incandescent bulbs.

You’ll recall my posting about this idea not long ago, in the context of proposed California legislation (so yes, I used the same images in the same way). Now, I’ll admit that I was thinking of that as a test case, and when things are ironed out into a workable legislation there one would imagine the model being rolled out to the rest of the world to adopt in their own fashion. I did not expect an entire country to adopt it so soon and at such a rate (they propose to stop sales of incandescents by 2010!).

We had a lot of discussion in that earlier thread about the pros and cons of this. Commenter IrrationalPoint (IP), for example, seems convinced that this represents a serious access problem for people who respond less favourably to the new lights. Such legislation is therefore discriminatory. My response to that was in several parts. The first is that I was not convinced that the cited flicker problems were really problems that referred to the new bulbs. They don’t work like the old nasty fluorescents we remember from years back, or that are still to be found in a lot of public spaces. Their flicker rate is up at tens of KHz, not the 60 Hz of old. IP (and one or two others) then suggested that the issues were with the spectrum. My response there was that the spectrum is quite a bit different from a lot fo the old lights, and where some discomfort might arise with the new ones, this is possibly only a problem for some if direct lighting from the light bulb is used. (I personally find direct light from incandescents pretty disturbing in a lot of cases too.) Why not use the bulbs in conjunction with a simple filter or other decorative fixture that can modify the light to your tastes?

But I am keeping an open mind on this. Perhaps I’m just wrong, and the whole idea of banning incandescents is unworkable and insensitive, but I am not convinced that work cannot be done to make sure that it works well for all concerned.

One of the biggest problems with the discussion is that nobody could point to good Continue reading ‘Light Seen Down Under?’

Fresh Air From Gore

al gore by eric leeAs you may know, Al Gore’s movie “An Inconvenient Truth” has been nominated for an Oscar. If you want to hear more from the man himself (see also his remarks in the previous post), here’s an interview with him on NPR’s Fresh Air. It first aired last year, but it is very current. It’s so good to hear a politician speak so intelligently on these matters

You know, the last few weeks Continue reading ‘Fresh Air From Gore’

How Many Legislators Does it Take to Change a Lightbulb?

compact fluorescent bulbincandescent bulbThis is a joke (the title) that works rather well, while being a serious issue as well. It’s all about trying to reduce our energy waste here in California, and contribute to the commitment to reduce greenhouse gas emissions. The idea is to change from the garden variety incandescent bulbs (see left) to the compact fluorescent ones (see right). It’s striking that more people don’t already use them. Ordinary bulbs (apparently 2 billion of them sold every year in the USA) convert only about 5 percent of the energy that they consume into light. The rest is just wasted heat.

For the same amount of light output, compact fluorescents use much less energy: A 25 Watt compact fluorescent gives about the same amount of light as a 75 Watt incandescent… and it lasts over 10 times longer. The technology has improved quite Continue reading ‘How Many Legislators Does it Take to Change a Lightbulb?’

200 Calories

What’s a calorie? Well, it is a unit of energy. If you take a gram of water and put some energy into it, you’ll raise its temperature (assuming it is away from its boiling point). If you succeed in raising the gram of water’s temperature by 1oC, you’ve put one calorie of energy into it.

But that’s not the calorie you probably have used in your everyday conversation. You’ve probably been talking about the Calorie. (Note the upper case C.) The Calorie, or the kilocalorie. It is 1000 times larger than the calorie of the previous paragraph. It’s the energy needed to raise the temperature of one kilogram of water by 1oC (assuming it’s not at its boiling point). That’s the Calorie you find discussed in the context of nutrition - the energy content of the food you eat.

Without further ado, let me show you what the Calories “look like”. Let’s take a reasonable number of them - 200. Each of the pictures below represents 200 Calories of a food, which you’d get from eating it. Mini peppers, gummy bears, and kiwi fruit:

peppers 200 calories gummy bears 200 calories kiwi fruit 200 calories

They are part of a series of rather beautiful photographs of lots of different foods, Continue reading ‘200 Calories’

Potential

Recall that a little over a month ago I reported about the Tesla electric car to you? In that article, I congratulated the car makers on their choice of name, and speculated about what other names might be used in the future when more car manufacturers get into the game. One of my favourites was the “Volt”. Well, today, GM announced a new electric car in development, and guess what they called it? The Volt! I was rather prescient, it seems! More on the announcement of the Chevy Volt at Newsweek (I borrowed the picture from there) and the San Jose Mercury News

chevy volt

What will the Volt do? It is a hybrid, but the driving mechanism is purely electric. This is different from what other well-known hybrids do”:
Continue reading ‘Potential’

Coiled

Well, in the fine and tedious tradition of various huge Hollywood movies (perhaps most recently Batman Begins), in showing the following picture I probably should have used the blog post title “I gotta get me one of those”, or some slight variant:

tesla electric car

… but I’ll spare you the cliché. This car is part of a fantasy that I (and some others) Continue reading ‘Coiled’

People of the Corn

The people of the corn are not the folks in Chiapas, Mexico, who have been known to call themselves that. Or, I should say not just them. Who else? The people of the USA. Maybe much more so than the people in Mexico.

I learned this from listening to Michael Pollan, author of the book “The Omnivore’s Dilemma”, who was on NPR’s Science Friday two days ago. His book explores the origins of the food that we eat every day, explaining the changes that have occurred in agriculture that moved us away from the traditional model of a farm (that many of us still have in our heads) to the current model: No animals, no pastures, no variety. Just a few specific crops, like corn. Corn grown for all sorts of reasons, and very few of them for the actual corn itself as a food. Instead, it goes into nearly everything that we eat (and more) in huge quantities. The vast majority of the food that we eat has corn at its base in some way or another. Either directly, such as in the sweeteners added to nearly every procesed food, or indirectly - corn is used as feed for producing the animals that we get meat, milk, etc, from. You can use a mass spectrometer to trace Continue reading ‘People of the Corn’

Fusion In Our Future?

ITERTuesday saw the official agreement between a consortium of countries to construct a fully functional fusion reactor, at a cost of 12.8 billion dollars, or thereabouts. The project is called the International Thermonuclear Experimental Reactor, ITER. It is indeed a huge undertaking, and we could end up with nothing to show for it, but on the other hand it would be a miniscule price to pay if we were to get the scheme off the ground. The promise of an abundant source of energy that is (supposedly) less polluting and safer to run than fission and does not add to our upcoming woes caused by climate change is too tantalizing not to pursue.

In case you’re wondering, the image to the right (click for larger) is a schematic representation of the 500MW reactor. It is of the classic “Tokamak” type, in which there is a torus (doughnut) shaped region where the plasma will be magnetically contained, at a temperature of 100 million K. To learn more about fusion, you can go to the article from the UKAEA here, and the article on ITER here at their website. From the latter, you can learn about the specific scientific objectives of ITER:
Continue reading ‘Fusion In Our Future?’

Out of Step, Out of Arguments and Out of Time

Those are the words of Kofi Annan at the UN conference on Climate Change earlier today (see AP story by Charles Hanley). His speech emphasized the “frightening lack of leadership” in forming strategies for how to tackle the huge task that lies ahead for our planet with regards emissions. Getting the job done here of course means us realigning our entire global culture’s priorities, taking our eyes off short term gain and looking to prospects for the future. The typical stance of the current US government that strong emissions controls (and treaties to enforce them, such as the Kyoto protocol) will hurt economies is one example of the short-sightedness that we are up against. Their delegates at the conference continue to reject arguments such as Continue reading ‘Out of Step, Out of Arguments and Out of Time’

Government Gets Stern

Well, as you can tell by looking in the “environment” category here, I’m likely to be pleased to hear about the Stern report, released yesterday (Guardian article and links to report here) and also pleased to hear that the UK government is taking the report seriously…. more or less.

I’d have a lot more to say, but I’ve said so much about this already, and I’m not really up to a long post on this right now. But I could not let this excellent (and hopefully landmark) event go unmarked. The point, as has been said before:- Nobody is going to get going on this because it is “the right thing to do”, since it is difficult for individuals and businesses to act in a way that makes things less than convenient for yourself for a cause that seems so abstract. Pure market forces will not do it either. We need actual leadership from the scientists -which has more or less happened for a while now (see my earlier reports on the UCS here and here for example)- and action and structure put in place by the people who will really get things going: economists and then governments (because they follow the money).

Well, Stern is a major figure in the “economists” group, and so this is good news. I must admit though that it really did make me cringe every time I heard the announcers on BBC Radio 4, while trying to emphasise how significant the report’s findings were, saying things like “this is not a report from an environmentalist, it is a Continue reading ‘Government Gets Stern’

Ballooning Costs

virgin balloonI’m still excited about the news that Branson has joined the fight to put money aside to lead the way in fighting global warming issues.

I blogged about it here a month ago, you’ll recall.

Well, of course the Onion has a take on this. It’s mean, but it is funny:

Analysts are predicting that the $3 billion Sir Richard Branson has pledged for developing energy sources to combat global warming could come close to matching the amount the entrepreneur, adventurer, and Virgin CEO has already spent on elaborate balloon-based excursions.

That’s the main joke, but to me, even funnier is the ending line of the artice:

Branson also reportedly plans to invest billions more on a time machine that would enable him to prevent the creation of Virgin Airways, reducing greenhouse-gas emissions by some four percent worldwide.

-cvj

Looking for a SEA Change?

SEA BannerI’ve previously mentioned examples of the manipulation or suppression of scientific information by organisations such as the Bush Administration. See for example a recent post on hurricanes and global warming. Various scientists have made it their business to speak out against these types of wrongs, either as individuals in the line of fire, as individuals noticing it in the news and blogging about it to as many as care to read, and as part of organisations here and abroad.

Well I’d like to point out a new organisation I heard about* called “Scientists and Engineers for America”, and I am pleased to share with you that their website says:

…a group of scientists and concerned citizens launch a new organization, Scientists and Engineers for America, dedicated to electing public officials who respect evidence and understand the importance of using scientific and engineering advice in making public policy.

The principal role of the science and technology community is to advance human understanding. But there are times when this is not enough. Scientists and engineers have a right, indeed an obligation, to enter the political debate when the nation’s leaders systematically ignore scientific evidence and analysis, put ideological interests ahead of scientific truths, suppress valid scientific evidence and harass and threaten scientists for speaking honestly about their research.

We ask every American who values scientific integrity in decision-making to join us in endorsing a basic Bill of Rights for Scientists and Engineers. Together we will elect new leadership beginning in 2006, and we will continue to work to elect reasonable leadership in federal, state and local elections for years to come.

America needs your help. Will you join us?

(Personally, I don’t see why it is necessary to be so America-centric about it, but there you have it. It’s their choice, of course.) Their Bill of Rights is linked here. Here are the points they list: Continue reading ‘Looking for a SEA Change?’

Branson’s On Board!

In more news from the battle to get action on Global Warming, from Reuters a short while ago:

Billionaire Virgin Group Chairman Richard Branson on Thursday committed an estimated $3 billion over the next 10 years, or all of the profits from his airline and rail businesses, to combating global warming.

“We are very pleased today to be making a commitment to invest 100 percent of all future proceeds to the Virgin Group from our transportation interest, both our trains and airline businesses, into tackling global warming,” Branson told a news conference at the Clinton Global Initiative in New York.

Excellent news….

“We must not be the generation responsible for irreversibly damaging the environment. We must hand it over to our children in as near pristine condition as we were lent it from our parents,” Branson said.

Hmmm. It is already too late for that, my friend. We are that generation. However, we do need to stop ourselves from further sliding into the hole we’ve dug for ourselves. Your money will help. Please tell your friends. Start a new and useful trend amongst the super-wealthy, please.

-cvj