Thawing permafrost in Alaska's Arctic is making it harder for oil companies to operate there. But a cottage industry has cropped up with new gadgets to help.
The list of alleged ethical missteps by EPA Administrator Scott Pruitt just keeps growing longer, but they don't seem to be having any effect on his standing with President Trump.
Hurricanes are moving more slowly than they used to. That means storms are dumping more rain and doing more damage when they make landfall, as Hurricane Harvey did when it lingered over Houston.