The U.S. scored 13th in global energy efficiency ranking, or near the bottom of the world's 16 largest economies.
There are pathways to reduce CO2 emissions and meet a key climate target but time is running out.
The biggest CO2 emitter won’t need to make the biggest emissions cuts under the EPA's Clean Power Plan.
The Clean Power Plan may allow some coal-fired power plants to operate without having to slash CO2.
A guidebook selling well in Germany details 200 renewable energy sites it thinks will appeal to tourists.
Energy Information Administration's online energy map shows infrastructure in path of extreme weather.
Brazil’s worst drought in decades is severely reducing hydropower energy supplies in advance of World Cup.
The IEA's fascinating graphic shows how radically CO2 emissions need to be reduced by 2050.
With a new design, the power of the Sun can now keep electricity turbines running both night and day.
Bicycle commuting can improve health and mitigate climate change, but states are in neutral.
Tech giant Apple claims that 94 percent of its corporate facilities are now powered by renewable energy.
Smart choices by cities like Miami in planning & investment could hold key to cutting emissions.
IPCC report's last installment says major shift to renewable energy needed to limit CO2 emissions.
IPCC warns about climate change, weather-related power outages, drought, Cyclone Ita and more.
Jim Yong Kim urges campaigners & scientists to work together to form a plan to fight climate change.
Advances in drilling technology mean more oil and more gas being produced more efficiently in the U.S.
The $5 billion facility is capable of capturing and storing CO2 emissions, but many remain skeptical.
One of the high costs of power plants switching to natural gas from coal could be the high demand for water.
Burning natural gas for electricity still better for climate than coal, despite major methane leaks, study says.
White roofs could keep U.S. cities cool in the summer, but precipitation winter temperature benefits are mixed.