Sam Eaton is an independent radio and television journalist. His reporting on complex environmental issues from climate change to population growth has taken him all over the United States and the world.
A Senate hearing will attempt to shift Washington's attention back to climate change. A new report says reducing greenhouse gases would have a modest impact on the economy. Sam Eaton reports.
The push for electric cars has given battery technology companies star status among investors. But some people think the real opportunity lies in building much bigger batteries. Sam Eaton reports.
Negotiators for a new international climate treaty have fielded several proposals that would allow poor nations to break patents on green technologies. The move could help countries stay innovative in the field. Sam Eaton reports.
U.S. Commerce Secretary Gary Locke said consumers should pay for the carbon content of the goods they consume, even from other countries like China. One option is imposing trade tariffs, but that proposal has the potential to set off a trade war. Sam Eaton reports.