August 23, 2012 Mitt Romney unveiled his plan Thursday to eliminate North America's dependence on foreign energy by 2020. The plan would end subsidies for renewable energy sources and instead rely heavily on fossil fuels from the U.S., Mexico and Canada. Not discussed were the immediate or long-term effects on climate change.
August 22, 2012 Ten years ago, a piece of ice the size of Rhode Island disintegrated and melted in the waters off Antarctica. Two other massive ice shelves along the Antarctic Peninsula had suffered similar fates a few years before. The events became poster children for the effects of global warming. But a new study finds that the story isn't quite so simple.
August 7, 2012 India's massive power outage last week points to a major problem for developing nations: supply is struggling to keep up with the growing demand — an imbalance that can affect the reliability of electric grids. Grid catastrophes are rare, but blackouts can be an everyday feature of life.
July 18, 2012 The process can cause blooms of algae that have the potential to soak up huge amounts of carbon dioxide from the atmosphere. A new study says this algae then drops to the sea floor, but some researchers caution that it's hard to track what happens to carbon in the ocean, and so-called "seeding" could have negative side effects.
July 6, 2012 Rising water temperatures and increasing ocean acidity can kill coral reefs. But a new study finds that dead reefs can potentially recover from catastrophes if ocean temperatures stabilize. Some scientists say the resiliency of coral reef may be the key to their survival.
July 2, 2012 The buzz is that on July 4, scientists may announce they're closing in on the elusive Higgs boson particle. The quest for the so-called "God particle" has gone on for decades; physicists say its existence is necessary to explain key information about our universe.
July 1, 2012 Royal Dutch Shell could drill several exploratory oil wells into the waters off the north shore of Alaska this summer. The potential prize is huge, but so is the risk, should there be an oil spill in the pristine and remote region. So Shell is recruiting locals and training them to confront oil in icy waters.
June 23, 2012 The international conference dedicated to alleviating poverty and leaving the planet livable was the biggest U.N. conference ever, but it may also have been one of the biggest duds. As the organizer put it, "equally unhappy means equally happy."
June 19, 2012 The company has spent $4 billion since 2007 on preparations to explore for oil off the north coast of Alaska. Many Alaskans welcome the venture, which could lead to the development of trillions of dollars worth of oil. But not everyone's convinced Shell has all the environmental safeguards in place to protect areas of the pristine Arctic.