Once prized like fine art, thousands of dried and preserved plants specimens are being digitized to help answer questions about conservation, climate change and development.
The Trump administration’s much-anticipated replacement of the Clean Power Plan is unlikely to reduce harmful greenhouse gases by much, and could end up making air quality in parts of Pennsylvania worse.
There's a growing group of conservatives on Capitol Hill who accept that climate change is caused by us and promote ‘free market’ solutions to the problem.