The Colorado Plateau and the Grand Canyon are just a few of the amazing geographical features of the Southwestern United States.

"Brexit" is a portmanteau that blends "Britain" and "exit", and refers to Britain leaving the European Union. The decision was made by referendum, in which a narrow majority of British voters chose to leave the European Union. This video (part 1 of 3) succinctly outlines the plans that Britain's Prime Minister and the Members of Parliament are grappling with on the eve of Britain's exit from the European Union on March 29, 2019.

We learn more about how water interacts with the minerals in the rocks, and visit Monument Valley, a popular spot for filming westerns and commercials.

Watch some coverage of the People's Climate March that was timed to coincide with the UN Climate Summit in New York City. The march was attended by 400,000 people.

Geysers represent a very popular tourist attraction in Yellowstone Park. How do they work and where do they come from? And what is sandstone? The video answers these questions.

Natalie Fee concludes her Ted Talk with a few suggestions for what we can do to reduce how much single-use plastic we are sending into the earth's waterways.

In Yellowstone Park, visitors can see many indigenous animals in their natural habitat and wonder at the park's natural hot springs.

The birth cycle of kangaroos, affectionately called “roos,” is the subject of this video from National Geographic.

Natalie provides some tips for wasting less plastic and leaves us with a slogan to help us rethink our flushing habits. She involves the audience to bring the message home.

Here's the trailer for an inspiring film about the efforts of ordinary people to make the world a more sustainable place. Experts talk about the necessity of taking action.

Ellen and Channing talk a bit about Magic Mike, a show in Vegas, and go on to talk about the animated movie Smallfoot, where he does the voice of Migo.

Channing Tatum makes one incredible entrance to Ellen's show and leaves the audience breathless. They talk about Channing's standing in for Jimmy Kimmel on his show.

Jack Black shares a "what else" moment with us, and, as usual, gets some criticism from George Clooney.

Natalie provides some facts and figures about how much garbage is getting flushed down the toilet in the UK, and goes on to tell us about a successful campaign she spearheaded, aimed at manufacturers of cotton swabs.

While it took Destin eight months to learn how to ride a backwards bike, his young son learned how in two weeks. The son's reward was a trip to Australia, where he got to meet Canadian astronaut Chris Hadfield.