The Trump Environmental Protection Agency delivered a significant blow to longstanding US climate policy on Thursday, finalizing rules to revoke a 2009 scientific finding that human-caused climate change endangers human health and safety.

The Environmental Protection Agency is rescinding the legal finding about climate change that it has long relied on to regulate greenhouse gas emissions.

Warming is occurring across most U.S. states, though the pace and type of temperature changes vary widely from region to region.

There's a confounding dilemma for many folks trying to make sense of winter weather in the context of climate change.

If temperatures continue to rise, by the end of the century, Delaware’s climate could resemble that currently experienced in the Carolinas. Today, the impacts of climate change can already be seen and felt in rising sea levels, dangerous heat waves and heavy precipitation.

A warming Arctic can stretch the polar vortex, a high-altitude air ribbon, one says. The “wobble” can disrupt the jet stream, causing extreme cold in the East.

As glaciers around the world continue to shrink and disappear, they are drawing more visitors than ever, not only for their beauty but for what they have come to represent in an era of climate change.

The rule rescinds a 2009 government declaration that determined that carbon dioxide and other greenhouse gases endanger public health and welfare.