The climate crisis is now a reality worldwide, but it's nowhere more apparent than the parched landscapes of northern Africa. Thousands are on the move looking for water to grow crops and graze livestock. Special correspondent Willem...

Government forces in the capital of Chad killed dozens of opposition protesters Thursday. Rights groups say the unarmed civilians were massacred as they protested having to wait two years for elections. People there are also suffering...

Paralyzed by a stroke, Henry Evans uses a telepresence robot to take the stage and show how new robotics, tweaked and personalized by a group called Robots for Humanity, help him live his life to the full. He shows off a nimble little...

Chris Abani tells stories of people: People standing up to soldiers. People being compassionate. People being human and reclaiming their humanity. It's "ubuntu," he says: the only way for me to be human is for you to reflect my humanity...

Howcast - Learn how to do side control escapes from Team Radical MMA head coach Rene Dreifuss in this Howcast MMA video, part two of two.

Howcast - Learn how to do the flying knee technique from Team Radical MMA head coach Rene Dreifuss in this Howcast MMA video, part one of two.

Howcast - Learn how to strike past the guard from Team Radical MMA head coach Rene Dreifuss in this Howcast MMA video.

Howcast - Learn N/S escapes from Team Radical MMA head coach Rene Dreifuss in this Howcast MMA video.

Howcast - Learn three ground fighting defense techniques from Team Radical MMA head coach Rene Dreifuss in this Howcast MMA video.

Howcast - Learn how to do side control escapes from Team Radical MMA head coach Rene Dreifuss in this Howcast MMA video, part one of two.

Howcast - Learn the back control submission rear naked choke (RNC) from Team Radical MMA head coach Rene Dreifuss in this Howcast MMA video.

Howcast - Learn techniques to take the back from Team Radical MMA head coach Rene Dreifuss in this Howcast MMA video, part two of two.

Howcast - Learn the cage fighting tactics clinches and dirty boxing from Team Radical MMA head coach Rene Dreifuss in this Howcast MMA video.

Howcast - Learn how to do a hip throw from Team Radical MMA head coach Rene Dreifuss in this Howcast MMA video.

Howcast - Learn how to do the single leg counter from Team Radical MMA head coach Rene Dreifuss in this Howcast MMA video, part two of two.

Howcast - Learn the finishing the double technique from Team Radical MMA head coach Rene Dreifuss in this Howcast MMA video.

Howcast - Learn how to do the flying knee technique from Team Radical MMA head coach Rene Dreifuss in this Howcast MMA video, part two of two.

Howcast - Learn how to counter a cross from Team Radical MMA head coach Rene Dreifuss in this Howcast MMA video.

Howcast - Learn slip basics from Team Radical MMA head coach Rene Dreifuss in this Howcast MMA video.

Howcast - Learn block basics from Team Radical MMA head coach Rene Dreifuss in this Howcast MMA video.

Howcast - Learn drills and fundamental movements from Team Radical MMA head coach Rene Dreifuss in this Howcast MMA video.

Howcast - Learn how to do a rolling omoplata MMA submission against a single leg takedown from Team Radical MMA head coach Rene Dreifuss in this Howcast video.

Howcast - Learn how to do a crucifix omoplata MMA submission from Team Radical MMA head coach Rene Dreifuss in this Howcast video.

Howcast - Learn how to do a triangle choke from side control MMA submission from Team Radical MMA head coach Rene Dreifuss in this Howcast video.