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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.
SciFri’s scientist-film critics weigh in on the science behind the Hollywood tec...
From miniatures and matte paintings to motion capture, a look at how movie techn...
We'll look at how Hollywood became a driving force in the invention of new techn...
Astronauts separate fact from fiction in Alfonso Cuarón's 3-D space epic, Gravit...