climate change

Science, Tech & Environment

Melting Arctic sea ice doubles the chances of harsh winters in other parts of the world

When most people hear the term "global warming," they naturally think of air temperature. In reality, more than 90 percent of the warming caused by greenhouse gases happens in the oceans. Much of this warming takes place in the waters in and around the Arctic Ocean, leading to increasingly rapid melting of sea ice. A new study links this melting to cold, harsh winters that are becoming more common in parts of the world.

Science, Tech & Environment

Activists to Obama: Stop leasing public land to take out oil, gas, coal

Public lands in the United States hold up to 450 billion tons of potential carbon emissions, in places like the Powder River Basin, home to massive coal deposits, or in offshore petroleum. If, over time, all of these emissions are released, it would be catastrophic for the climate. A new campaign is pressing President Obama to keep them in the ground forever.