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 ...

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.

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 ...

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 ...