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Ray Kurzweil thinks we’re near a solar energy tipping point
A tipping point means it's more effective and less expensive than alternatives, says Ray Kurzweil. He believes the tipping point for solar energy comes soon.
May 23, 2009
Energy from cellulose: The promise and peril
We're far away from the day when cornstalks and switchgrass will yield enough fuel at a reasonable cost to make a difference in the energy economy.
May 19, 2009
Carl Imhoff on how electric grids can get smart
Carl Imhoff on research paid for with both public and private money. The goal is to modernize the electric grid in the U.S. into what's called a 'smart grid.'
May 18, 2009
Stephen Blake, on the memories of elephants
A student from Spain wonders if it's true that elephants have good memories. Elephant ecologist Stephen Blake answers the question, and talks about what makes elephants so special.
May 17, 2009
Camille Parmesan: ‘Some species need human help to survive’
Some species might need human help to survive, said Camille Parmesan. "We should help them move and help them shift along with the climate."
May 17, 2009
Vicky Meretsky on new endangered species rules
Listen to conservation biologist Vicky Meretsky talk about how endangered species could benefit from renewed protections from the Obama administration.
May 16, 2009
The future Nobel laureates of the world
I'm pretty certain that these students are going to be the ones who help save the world and become future Nobel laureates.
May 13, 2009
Crops for electricity yields more miles than ethanol
Researchers found that burning crops for electricity for electric vehicles would produce 81 percent more transportation miles than using the same crops to produce ethanol.
May 8, 2009
Rod Heelis: ‘Space storms disrupt GPS, satellite signals’
Rod Heelis on the clarity of satellite radio and GPS signals depends on the ionosphere. Storms in space can interfere with and disrupt earthly communications.
May 8, 2009
History of nuclear age precedes a nuclear renaissance
It wasn't hard to get into Stephanie Cooke's book on the history of nuclear power. She explores a way to make this expensive endeavor useful to the public.
May 7, 2009
