Newsletter www.cnn.com 11,000 years ago, our ancestors survived abrupt climate change Imagine if, instead of heat this summer, we were faced with a sudden, dramatic cold front that lasted the next 100 years. That is what our hunter-gatherer ancestors lived through 11,000 years ago.
As Biden prepares to block the sale of U.S. Steel to Nippon Steel, pollution concerns persist in Pennsylvania
A Pennsylvania fracking company with more than 2,000 environmental violations selected for federal environmental justice funding
