How can we get CO2 out of the atmosphere? Get it out of the sea first.
Making jet fuel from seawater
is a pretty cool -- albeit energy intensive -- trick. But applying the same science to scrub CO2 out of seawater, where it is more densely concentrated than in the atmosphere -- and, by doing so, to reduce atmospheric levels of CO2 back to acceptable levels -- that's a game saver.
"what would it take to draw atmospheric carbon down to 350 ppm with just this technology? . . . we would require the power of about 700 AP-1000 nuclear reactors. At the Chinese cost of $1.3b apiece and an 80 year lifetime this would cost a bit over $1 trillion dollars. That sounds like a lot of money. But its only about the cost of America’s 2003 Iraq War spread over the century, so I guess it’s a question of priorities."
posted by markkraft
on Jan 19, 2013 -
Nuclear engineers are never taught about the other kind of nuclear reaction. But a working prototype was built over 40 years ago. "The thick hardbound volume was sitting on a shelf in a colleague’s office when Kirk Sorensen spotted it. A rookie NASA engineer at the Marshall Space Flight Center, Sorensen was researching nuclear-powered propulsion, and the book’s title — Fluid Fuel Reactors — jumped out at him. He picked it up and thumbed through it. Hours later, he was still reading, enchanted by the ideas but struggling with the arcane writing. “I took it home that night, but I didn’t understand all the nuclear terminology,” Sorensen says. He pored over it in the coming months, ultimately deciding that he held in his hands the key to the world’s energy future." [more inside]
posted by Araucaria
on Dec 21, 2009 -
Will algae defeat global warming?
"Fed a generous helping of CO2-laden emissions, courtesy of the power plant's exhaust stack, the algae grow quickly... The cleansed exhaust bubbles skyward, but with 40 percent less CO2... The algae is harvested daily and a combustible vegetable oil is squeezed out: biodiesel".
posted by reklaw
on Apr 14, 2006 -
Welcome to the first web site in America dedicated exclusively to raising awareness about the connection between hurricane Katrina and global warming.
See below an essay just written by author Mike Tidwell that explains how climate change will soon turn every coastal city in America into another New Orleans unless we make a rapid switch to clean, renewable energy worldwide.
posted by Postroad
on Sep 9, 2005 -
using biomass to produce hydrogen, reduce the emissions of coal-fired power plants, and suck CO2 out of the atmosphere, all while improving agricultural productivity. A new virtuous cycle
posted by alms
on Jun 24, 2005 -