The federal government’s ability to regulate greenhouse gases depends on a 2009 scientific determination. The Trump administration wants to repeal it. By Claire Brown A major new analysis issued ...

According to two people familiar with the draft, it would eliminate the bedrock scientific finding that greenhouse-gas emissions threaten human life by dangerously warming the planet. By Lisa Friedman ...

In one of its most significant reversals on climate policy to-date, the Trump administration on Tuesday proposed to repeal a 2009 scientific finding that human-caused climate change endangers human ...

The production possibility frontier (PPF) is a curve that is used to discover the mix of products that will use available ...

The Trump administration wants to overturn a key 2009 Environmental Protection Agency finding that underpins much of the federal government's actions to rein in climate change. The EPA has crafted a ...