As natural gas booms, renewable energy proponents wonder if it will hurt or help solar power.
The International Energy Agency says global energy-related CO2 emissions were flat in 2014.
National forests, parks and other public lands play a major role in America's defense against climate change.
The world must make electricity more climate-friendly, or it may not be able to meet its climate goals.
Leading cap-and-trade programs are spending billions on clean energy and other climate programs.
The project is expected to generate enough electricity to power nearly 2 million homes, supporting 900 jobs.
Researchers say slashing the energy requirements of the water supply will become critical as drought becomes more common.
A new Bloomberg report shows that clean energy investments in the U.S. are growing again.
Traditional wood burning is more sustainable and less environmentally damaging than previously thought.
Oil prices and advancements in renewables in 2014 set the scene for a major turning point in energy in 2015.
Washington's governor has proposed a sophisticated and broad carbon cap-and-trade program.
Green bonds are drawing increased attention for financing projects that provide climate benefits.
Cheap gasoline may not mean people will drive more this winter, a new EIA report says.
New study shows that electric vehicles' environmental friendliness depends on where the electricity comes from.
New interactive map shows how energy production in U.S. has grown since 1993.
State mandates and tax incentives make California the most popular state for buying an electric car.
Low oil prices means people will drive more and buy less efficient vehicles, increasing CO2 emissions.
The Obama administration's plan to cut CO2 emissions moves to next step.
New Yorkers and Bostonians will pay higher natural gas prices this winter because of a pipeline crunch.
Negotiators are about to gather in Lima to thrash out the details of the first post-Kyoto climate treaty.