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The risk from killer asteroids with David Helfand
An asteroid collision likely wiped out the dinosaurs. EarthSky spoke with David Helfand of Columbia University on the risk today from killer asteroids.
August 16, 2010
Better agriculture: growing more food with less impact
"We want a kind of agriculture that's productive," he said, "but we can't afford to damage the environmental resources that agriculture largely relies upon."
August 16, 2010
A second Green Revolution with Jonathan Lynch
Lynch said the second Green Revolution can’t depend on irrigation or fertilizer. He said that to grow more food under tough conditions affordably, we’re going to have to breed plants with improved roots.
August 16, 2010
Common chemicals might scramble hormones’ signals
Certain common chemicals - found in everyday objects - might be scrambling our hormones' sensitive signaling. Read more about it here.
August 16, 2010
Tests for illegal nuclear activity with Ian Hutcheon
Physicist Ian Hutcheon is what you might call a nuclear detective. He looks for evidence of illegal nuclear activity. Read more about it here.
August 16, 2010
Jill Tarter on SETI’s 50-year search for extraterrestrial life
SETI stands for Search for Extra-Terrestrial Intelligence. The director of SETI's research - Jill Tarter - spoke with EarthSky. Read about it here.
August 16, 2010
Sheril Kirshenbaum: Science needs creative, passionate communicators
Sheril Kirshenbaum says there's a gap in understanding between scientists and the rest of us. She talked about how scientists can close that gap.
August 9, 2010
David Rand: Happiness and sadness are contagious
A new study says that people who spend time with happy people are more likely to become happy themselves. Read more about happiness being contagious.
August 9, 2010
Simon Bishop on solutions to energy poverty
Up to 3 billion people don't have access to basic energy services. Simon Bishop said his team looks for solutions that can be replicated all over the world.
August 9, 2010
The state of life on Earth with Anne Larigauderie
A new U.N. panel is designed to report back to the world on the state of the richness and variety of life on Earth. Read about the state of life on Earth.
August 9, 2010
