The newly approved Cape Wind project in Massachusetts will be closely watched, by both supporters and detractors, as it goes forward. Many see it as a barometer for the future of offshore wind energy in the US.
President Obama's plan to open new swaths of coastline to offshore drilling is being questioned anew in light of the potentially disastrous Gulf of Mexico oil spill. Politics of the pending climate-energy bill may be affected, too.
Miniature, mass-produced nuclear power plants, along with other alternative energy sources, can help the US address global warming, says Energy Secretary Steven Chu. Critics see that plan as raising the risk of proliferation of nuclear materials.
Some oil companies are adding nitrogen to their gasoline. But does it cause pollution as well as boost performance a bit?
The windswept Great Lakes hold huge promise for wind power, experts say. But a plan for an offshore wind farm in Lake Michigan is raising local ire.
Only 63,000 of the jobs directly created or saved by the stimulus bill last year were clean-energy jobs. That number should rise, economists say.
In announcing $8.3 billion in loan guarantees for the first new nuclear reactors in the US in 30 years, Obama is setting the stage for a nuclear power comeback. But many challenges lie ahead.
Obama wants to triple public financing for new nuclear power plants, even as he nixes funds for storing commercial radioactive waste. The policy may be calculated to win votes for climate change legislation, but critics say it's not 'coherent' and carries new security risks.
Funding for the nuclear waste repository at Nevada's Yucca Mountain was eliminated in the president's budget proposal. Planning begins anew for long-term storage even as Obama urges a nuclear-power expansion.
This year, more automakers will roll out electric cars to American roadways.
Methane gas produced in California landfills fuels garbage and recycling trucks, reducing the state's carbon emissions.
Buried super-cooled electrical cables may replace towering transmission lines and carry solar and wind energy efficiently over long distances.
In an interview, Denise Bode, CEO of the American Wind Energy Association, says the industry needs a renewable energy mandate from the climate conference in Copenhagen and from Congress.
Carbon emissions affect more than the climate. Scientists now suspect they are also making Alaskan seas more acidic.
Discount deals and tax incentives help homeowners go solar,
The boating industry is making efforts to offer a greener product.
It may look like an out-of-place throwback, but the Off-Grid, Zero Emissions Building has a futuristic purpose.
Developing nations' urgent need for more energy has become a central issue this year as developed countries push for a global reduction in carbon emissions.
Solar power has suddenly become more affordable.
Is it better to go with your utility's renewable power option or install your own solar or wind power?
Energy source or more trouble for the environment?
Four technologies aim to use heat from the sun to make electricity. But which one has the edge?
Recycling program turns an environmental hazard into electricity.
A new study finds that hydrofluorocarbons could become a significant factor in future warming.
The mayor goes on a crusade to make it a hub of renewable energy.