Tidal power

Modified jets spewing sulfuric acid could haze the skies over the Arctic in a few years “for the price of a Hollywood blockbuster,” as physicist David Keith of Harvard University likes to say.

Innovators gather in DC this week to discuss how to modernize the U.S. electric grid in the face of a changing electricity sector. The ARPA-E Energy Innovation Summit kicks off today in Washington DC and will highlight technologies that could fundamentally alter how the nation generates, uses, and stores electricity.

The U.S. Senate voted 62 to 36 yesterday to build the controversial Keystone XL Pipeline that would bring oil from tar sands in Canada down through the U.S.

President Barack Obama's sixth State of the Union address, his first before a Republican-led legislature, was studded this evening with references to science and technology amidst talk of middle class tax cuts, thawing U.S.

Electricity suppliers have been shedding jobs over the past three years, with a net loss of 5,800 jobs across the United States. While non-hydro renewable power plants have seen significant growth, these job additions were not enough to offset losses at nuclear, fossil fuel, and hydroelectric power plants.

Today Rocky Mountain Institute (RMI), brain-child of famed energy thinker Amory Lovins, and Carbon War Room (CWR), the five-year old climate change outfit of Sir Richard Branson, merged to create a new alliance dedicated to the acceleration of a low carbon energy future.

On Friday, a new Yale-Associated Press-NORC poll on environmental attitudes reported that just 56 percent of Americans believe global warming is happening.

On Thursday, the Organization of Petroleum Exporting Countries (OPEC), an economic cartel responsible for approximately one third of global oil production, announced it would not decrease its rate of oil production.

Imagine if the world’s two largest polluters unilaterally decide to cut emissions of carbon dioxide, the ubiquitous gas responsible for the bulk of global warming.

On a visit to China a few years back, I asked a local official about pollution controls after enjoying my first sour, gritty taste of the country’s air.

Congress can be...chaotic. Last Thursday night, President Obama unveiled plans for immigration reform, and literally challenged Congress to stop him.

High in the Peruvian Andes 8,000 alpacas died during a particularly harsh period of cold in the summer of 2004. For the herders who raise and shear these long-haired beasts for a living, it was a huge loss amounting to one fifth of all the alpacas living in that region of the highlands.