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 ...

Q What's wrong with having an ozone air cleaner in our home? We have one and visitors told us it's dangerous. Is it? A Yes. Health experts do not recommend the use of ozone air cleaners in homes.

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 ...

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