Impactswww.flickr.com Some of the world’s oldest trees are at risk in Yosemite wildfire Firefighters are racing to protect more than 500 giant sequoias in Mariposa Grove.
Solutions therevelator.org Hawaii’s invasive predator catastrophe Endangered seabirds can recover, but only if we control feral cats and other non-native predators, new research finds. (Especially cats.)