Power Generation from Renewables Surpasses Nuclear

The latest issue of the Monthly Energy Review published by the US Energy Information Administration, electric power generation from renewable sources has surpassed production from nuclear sources, and is now "closing in on oil," says Ken Bossong Executive Director of the Sun Day Campaign. In the first quarter of 2011 renewable energy sources accounted for 11.73 percent of US domestic energy production. Renewable sources include solar, wind, geothermal, hydro, biomass/biofuel. As of the first quarter of 2011, energy production from these sources was 5.65 percent more than production from nuclear. As Bossing further explains from the report, renewable sources are closing the gap with generation from oil-fired sources, with renewable source equal to 77.15 percent of total oil based generation.

Fools Gold May Not Be So Foolish for Solar Energy

Pyrite, also known as fool's gold, was the stuff of heartbreak for many a gold miner. Mimicking the look of the precious gold they were after, Pyrite was considered essentially worthless. But for the solar energy industry, Pyrite just may turn into a pot of gold.

EarthTalk: What is Global Dimming?

Global dimming is a less well-known but real phenomenon resulting from atmospheric pollution. The burning of fossil fuels by industry and internal combustion engines, in addition to releasing the carbon dioxide that collects and traps the sun's heat within our atmosphere, causes the emission of so-called particulate pollution—composed primarily of sulphur dioxide, soot and ash. When these particulates enter the atmosphere they absorb solar energy and reflect sunlight otherwise bound for the Earth’s surface back into space.

Global Coral Bleaching Among Worst Ever Seen

Coral reefs are both vital and vulnerable to change, and the combination of rising ocean surface temperatures and increased acidification is devastating corals across the globe in one of the worst bleaching and die-off events ever recorded.

Walrus Again Forced to Flee Melting Arctic Sea Ice

We first reported in 2007 of Walrus pushed off Arctic sea ice due to unusually low Arctic sea ice extent in the eastern Chukchi Sea, where they normally spend their summers breeding and feeding in the shallow waters of the continental shelf. For the third time in the past four years Walrus again find themselves forced onto land due to retreating sea ice.