Can America develop a balanced portfolio of clean energy solutions that will stop wasting energy and also develop diverse, domestic energy supplies to increase energy security?

Mark Twain might as well have been talking about global warming when he famously remarked, "Everybody talks about the weather, but nobody ever does anything about it."

A fleet that relies on continuously evolving conventional technologies could reach an average of more than 40 miles per gallon.

This report is intended to guide prospective wind farm developers through the process of site assessment.

Seven ways to switch America to renewable electricity.

The federal government can shape consumer demand for whole buildings through coordinating its building-related activities into a "whole building policy."

Real-world emission reductions from passenger vehicles over the past 30 years.

A new technology—fuel cell vehicles—promises clean and efficient travel for the 21st century, and these cars and trucks could soon be on the roads of Asia, Europe, and the United States.