Solar Cheaper than Coal in 3-5 Years? GE and First Solar Think So
9 Jun, 2011
The news is carrying two stories in the last two weeks pitching solar as potentially cheaper than current electrical rates in the next 3-5 years. First, in an interview with Bloomberg, GE’s global research director Mark M. Little said that their thin film solar PV…
R e a d M o r eGenetically Tweaked Microbes on 0.6% of Earth’s Land Could Replace Oil
18 May, 2011
New Scientist has an article on biotech firm Joule’s upcoming ethanol production biofuel plant. Joule already has a pilot plant covering 0.8 hectares in Leander, Texas. On 5 May, the firm announced that it had secured 486 hectares in Lea County, New Mexico, for a…
R e a d M o r eCan We Capture All the World’s Carbon?
16 May, 2011
I originally posted this at Scientific American. Reposting here with permission. In 2011, the world will emit more than 35 billion tons of carbon dioxide. Every day of the year, almost a hundred million tons will be released into the atmosphere. Every second more than…
R e a d M o r eSpecial report: Rescuing nuclear power – New Scientist
31 Mar, 2011
New Scientist has an excellent special report on nuclear power. Topics covered include how well more recently built reactors would have fared in the tsunami (many of them would have done just fine), the prospects for safe Thorium based reactors, and this graphic below…
R e a d M o r eMore Efficient Aircraft Designs
30 Mar, 2011
The Economist has an article on aircraft designs that could cut fuel use by 50-70%, while still working with today’s airports (a challenge for flying wing designs). From the article: Two groups working on the future of aircraft have come up with designs that could…
R e a d M o r eKey Trends of the Next 25 Years
21 Mar, 2011
Michell Zappa has a fascinating infographic attempting to lay out timelines for future technologies over the next 25 years. It’s an impressive job of collecting data and laying it out in a way that someone can explore. It’s worth playing with. Click through on the…
R e a d M o r ePersuading Climate Skeptics – Why We Need Republican Experts
18 Mar, 2011
New Scientist has an interesting article on research into what persuades people on scientific issues. The key finding is that there’s a major impact of hearing the evidence from someone who has similar political and social outlooks. Experts who are similar to listeners are inherently…
R e a d M o r eIs Moore’s Law Really a Fair Comparison for Solar?
17 Mar, 2011
[This is an update of a post I first wrote in March of 2011, responding to criticism of the analogy of Moore’s Law for solar power. Updating in April 2015, on the 50th Anniversary of Moore’s Law, in light of renewed conversation on this topic.…
R e a d M o r eThe Exponential Gains in Solar Power per Dollar
17 Mar, 2011
My post on the Moore’s Law-like exponential gains in solar power per dollar went up at Scientific American yesterday. Reprinting here with permission. The sun strikes every square meter of our planet with more than 1,360 watts of power. Half of that energy is absorbed…
R e a d M o r eOrganic Crops have Lower Yields than Conventional Crops
14 Mar, 2011
Plant pathologist Steve Savage has analyzed the data from the USDA’s Organic Production Survey (the largest ever survey of organic farming in the United States) and finds that organic yields per acre are substantially lower than the yields of conventional crops. By far the biggest…
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