With climate change, plastic pollution and a potential sixth mass extinction, humanity has made some incredible messes in the world. “We can be good at cleaning up our messes, it’s whether or not we ...

This article was originally on a blog post platform and may be missing photos, graphics or links. See About archive blog posts. Ozone can produce breathing problems and lead to smog production. One ...

As the Environmental Protection Agency is preparing to reclassify nine Denver metro counties from "serious" to "severe" violators of federal ozone standards — a worse categorization for these areas to ...

With climate change, plastic pollution and a potential sixth mass extinction, humanity has made some incredible messes in the world. But when people, political factions and nations have pulled ...

For Earth Day, The Associated Press asked environmental scientists and policy experts to share their top stories about environmental problems that the world fixed. With climate change, plastic ...