New report ranks the most polluted places in the U.S.

The American Lung Association says 131.2 million people – that’s 39% of Americans – live in communities with failing grades for levels of pollution. Here's a map of the best and worst.

Here are the top 10 deadliest national parks, according to research

The serene landscapes of our national parks feature a plethora of mountainous landscapes, pristine beaches and lush forests, but there are some deadly risks associated with visiting. Outdoor clothing brand KÜHL looked at different criteria and came up with a list of the top 10 deadliest national parks.