In this passionate call to action, 16-year-old climate activist Greta Thunberg explains why, in

In this passionate call to action, 16-year-old climate activist Greta Thunberg explains why, in August 2018, she walked out of school and organized a strike to raise awareness of global warming, protesting outside the Swedish parliament and grabbing the world's attention. "The climate crisis has already been solved. We already have all the facts and solutions," Thunberg says. "All we have to do is to wake up and change."

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How do you talk to someone who doesn't believe in climate change? Not by rehashing the same data and facts we've been discussing for years, says climate scientist Katharine Hayhoe. In this

How do you talk to someone who doesn't believe in climate change? Not by rehashing the same data and facts we've been discussing for years, says climate scientist Katharine Hayhoe. In this inspiring, pragmatic talk, Hayhoe shows how the key to having a real discussion is to connect over shared values like family, community and religion -- and to prompt people to realize that they already care about a changing climate. "We can't give in to despair," she says. "We have to go out and look for the hope we need to inspire us to act -- and that hope begins with a conversation, today."

Check out more TED Talks: http://www.ted.com

The TED Talks channel features the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design -- plus science, business, global issues, the arts and more.

Follow TED on Twitter: http://www.twitter.com/TEDTalks
Like TED on Facebook: https://www.facebook.com/TED

Subscribe to our channel: https://www.youtube.com/TED

Sunrun co-founder Ed Fenster says, "The best way to talk about climate is just to take an action yourself, then share with your friends how it has made your life better ... believe that the cycle

Sunrun co-founder Ed Fenster says, "The best way to talk about climate is just to take an action yourself, then share with your friends how it has made your life better ... believe that the cycle will repeat" #LetsTalkClimate

Katharine Mach, a senior research scientist

Katharine Mach, a senior research scientist at Stanford University, talks about how hot it will get and what that means for us.

Our Children’s Trust is suing the federal government on behalf of twenty-one young people, including Victoria Barrett, over its climate policies. The lawsuit demands a science-based national

Our Children’s Trust is suing the federal government on behalf of twenty-one young people, including Victoria Barrett, over its climate policies. The lawsuit demands a science-based national climate recovery plan to bring carbon dioxide below 350 parts per million by 2100.

As of May 8, 2017, results were encouraging: a preliminary ruling in November affirmed the U.S. Constitution guarantees the right to a climate system capable of sustaining human life.

Join us for a special keynote address by Laura Turner Seydel, a Board Member of the Turner Foundation and Board Chair for Mothers and Others for Clean Air.

Discover more about the Climate

Join us for a special keynote address by Laura Turner Seydel, a Board Member of the Turner Foundation and Board Chair for Mothers and Others for Clean Air.

Discover more about the Climate Reality Project at climaterealityproject.org, and learn about Laura Turner Seydel at lauraseydel.com.

The Association of Space Explorers (ASE) united astronauts from multiple nations, including Germany, Japan, US, and India, to send a vital message of solidarity, hope, and collaboration to

The Association of Space Explorers (ASE) united astronauts from multiple nations, including Germany, Japan, US, and India, to send a vital message of solidarity, hope, and collaboration to political leaders concerning climate change. This powerful initiative aims to inspire action during a crucial time.

For deeper insight into the Overview Effect and astronaut experiences, explore "OVERVIEW" on YouTube and "PLANETARY," available on iTunes. The video was produced by astronaut Ron Garan and the award-winning Planetary Collective, in association with Daria Lopez-Alegria of Space Bridges.

Learn more at weareplanetary.com.

Explore more climate change videos from Defenders of Wildlife. Watch them here: