TED Talks

3800+ talks to stir your curiosity

Find just the right one

9:17

Hongqiao Liu

Can China achieve its ambitious climate pledges?

Posted Oct 2021

9:46

Solomon Goldstein-Rose

How much clean electricity do we really need?

Posted Oct 2021

12:40

Isha Datar

How we could eat real meat without harming animals

Posted Oct 2021

5:06

Dan Kwartler

Why don't we cover the desert with solar panels?

Posted Oct 2021

13:34

Tzeporah Berman

The global treaty to phase out fossil fuels

Posted Oct 2021

54:23

Countdown Summit

Decarbonizing fossil fuels

Posted Oct 2021

15:06

Jamie C. Beard

The untapped energy source that could power the planet

Posted Sep 2021

5:32

Climate Action Tracker

The state of the climate crisis in 2021

Posted Sep 2021

11:51

Ma Jun

An interactive map to track (and end) pollution in China

Posted Aug 2021

5:02

Jean-Baptiste P. Koehl

Iceland's superpowered underground volcanoes

Posted Jul 2021

12:31

Nigel Topping

3 rules for a zero-carbon world

Posted Jul 2021

8:26

Alok Sharma

Why COP26 is our best chance for a greener future

Posted Jul 2021

4:37

Stefan Al

Could we build a wooden skyscraper?

Posted Jul 2021

5:16

Kathy Hannun

How to heat your home without hurting the planet

Posted Jun 2021

5:28

Luka Seamus Wright

The sharks that hunt in forests

Posted Jun 2021

13:46

Beth Ford

What farmers need to be modern, climate-friendly and profitable

Posted May 2021

11:45

Anu Puusa

The case for co-ops, the invisible giant of the economy

Posted May 2021

4:19

Cory Combs

The future of flying is electrifying

Posted May 2021

4:41

Grantly Galland and Raiana McKinney

Meet the bluefin tuna, the toughest fish in the sea

Posted May 2021

6:15

Angel Hsu

Cities are driving climate change. Here's how they can fix it

Posted Apr 2021

17:39

Tai Simpson

The intergenerational wisdom woven into Indigenous stories

Posted Apr 2021

4:44

Rebecca J. Barthelmie and Sara C. Pryor

How do wind turbines work?

Posted Apr 2021

4:49

TED-Ed

Why good ideas get trapped in the valley of death — and how to rescue them

Posted Apr 2021

48:21

Bill Gates

The innovations we need to avoid a climate disaster

Posted Mar 2021

4:26

TED-Ed

How much land does it take to power the world?

Posted Mar 2021

11:07

Emily Leproust

How synthetic biology can improve our health, food and materials

Posted Mar 2021

4:41

TED-Ed

How much electricity does it take to power the world?

Posted Mar 2021

5:06

TED-Ed

The material that could change the world ... for a third time

Posted Mar 2021

4:55

TED-Ed

The world's biggest battery looks nothing like a battery

Posted Feb 2021

38:05

John Kerry and Al Gore

The US is back in the Paris Agreement. What's next?

Posted Feb 2021

4:26

Karen Scrivener

A concrete idea to reduce carbon emissions

Posted Feb 2021

13:02

His Holiness Pope Francis

Our moral imperative to act on climate change — and 3 steps we can take (English voiceover)

Posted Jan 2021

13:02

Su Santidad el Papa Francisco

Nuestro imperativo moral para actuar sobre el cambio climático — y 3 pasos que podemos dar

Posted Jan 2021

9:29

Achim Steiner

Humanity's planet-shaping powers — and what they mean for the future

Posted Jan 2021

4:46

A.J. Jacobs

The life cycle of a cup of coffee

Posted Jan 2021

4:37

Tom Schuler

How we could make carbon-negative concrete

Posted Jan 2021