Loss of forests is a major contributor to greenhouse-gas emissions. Plans to devise a policy tool for using trees for carbon dioxide sequestration are now under way.

While some experts fault demand increases for record-high oil prices, others say production and market issues reflect price hikes are more complicated.

The transport of liquefied natural gas to the United States is expected to surge in the next two decades. The explosive power of such gas makes transport ships attractive terrorist targets. Security …

Two decades ago, the United States was the world’s largest creditor; now it’s the world’s largest debtor. As Ben Bernanke assumes the post of Federal Reserve chairman, succeeding Alan Greenspan, opin…

President Bush, in his January 31, 2006, State of the Union address, proposed an Advanced Energy Initiative to reduce American dependency on foreign energy sources. The following is a summary of U.S…