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In his new book, Lester Brown says the world's food supply is tightening -- and the reasons are many.
Climate change may transform how and where farmers grow the food to feed rising numbers of mouths.
From small-scale nuclear power plants to advanced reactor designs, what's next for the technology of nuclear power?
Ira talks about global sustainability with Lester Brown, head of the Earth Policy Institute.
How closely related are food supplies and the stability of a civilization?
March 22 is World Water Day. In this hour, we'll take a look at the technical and political challenges in providing clean water around the world.
Ira talks with Lester Brown of the Earth Policy Institute about the environmental problems facing the globe, and what can be done to take action to fix them.
Much-maligned moths are more than the butterfly’s drab cousin.
Hawk moths feed like hummingbirds. Ty Hedrick wants to know how they hold steady...
Can woolly bear caterpillars predict winter weather?
Several newly-discovered species of caterpillar in Hawaii function equally well ...
A virus known as baculovirus sends caterpillar climbing for the treetops.
\tLegend holds that the length of a woolly bear caterpillar’s color bands can be used to forecast how severe the winter weather will be. The myth dates back to colonial American folklore but was popularized by a 1948 study. SciFri finds out if there’s any truth to the lore, and what the caterpillar’s fuzzy bristles are really used for.