Earth day

Jason Momoa hasn't rocked the shaved beard look since 2012.

It's time to celebrate our national parks, and starting on Saturday (April 20) there are events going on across the U.S to encourage Americans to take part.

These hotels are protecting the environment and reducing plastic

A new book celebrates the desire of twenty-first century travelers for mindful moments and the environmental initiatives of an optimistic generation of hoteliers.

Earth Day 2018 is focused on a multi-year campaign to end plastic pollution.

"The perspective of Earth from space is incredible," he writes. But the views from space "also show us changes; we need leadership to protect it."

Throngs of New Yorkers took to the streets on Earth Day for Saturday's worldwide March for Science. Viva la evolution!

These photos are beautiful, but many of these places will cease to exist if we don't reverse course, fast.

More than 150 countries will commit to the pact, which calls for a rapid end to the rise of greenhouse gas emissions.

An early start date would lock a U.S. president into the deal for four years.

Ever since Jimmy Carter put 32 solar panels on the roof, presidents have been striving to make the White House more environmentally friendly.

There are just a few minutes on the clock, says Ed Begley Jr., but the game is definitely not over

Water comes at a price, which includes being responsible about its cost and use.

HBO series and its special Earth Day episode feature kids talking to kids about the environment.