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Global issuesRemove Clear
4:37

Kristen Ashburn

The face of AIDS in Africa

Posted Oct 2008
18:55

Mihaly Csikszentmihalyi

Flow, the secret to happiness

Posted Oct 2008
16:30

Steven Johnson

The Web as a city

Posted Oct 2008
15:07

Noah Feldman

Politics and religion are technologies

Posted Oct 2008
23:16

Philip Zimbardo

The psychology of evil

Posted Sep 2008
13:45

Eve Ensler

What security means to me

Posted Sep 2008
18:42

Jonathan Haidt

The moral roots of liberals and conservatives

Posted Sep 2008
19:42

Ann Cooper

What's wrong with school lunches

Posted Sep 2008
16:06

Keith Bellows

The camel's hump

Posted Sep 2008
25:18

Irwin Redlener

How to survive a nuclear attack

Posted Sep 2008
23:46

Jane Goodall

How humans and animals can live together

Posted Sep 2008
16:38

Ory Okolloh

How I became an activist

Posted Aug 2008
20:59

Sugata Mitra

Kids can teach themselves

Posted Aug 2008
14:53

David Griffin

How photography connects us

Posted Aug 2008
20:29

Jonathan Harris

The web as art

Posted Jul 2008
25:07

Rick Smolan

The story of a girl

Posted Jul 2008
3:31

Adam Grosser

A mobile fridge for vaccines

Posted Jun 2008
2:15

Murray Gell-Mann

The ancestor of language

Posted Jun 2008
19:12

Wade Davis

The worldwide web of belief and ritual

Posted Jun 2008
16:51

Paul Collier

The "bottom billion"

Posted May 2008
4:29

Alisa Miller

How the news distorts our worldview

Posted May 2008
17:51

Paul Ewald

Can we domesticate germs?

Posted May 2008
17:44

Paul Stamets

6 ways mushrooms can save the world

Posted May 2008
19:57

Hector Ruiz

The thinking behind 50x15

Posted May 2008
16:43

Ernest Madu

World-class health care

Posted Apr 2008
27:54

Al Gore

New thinking on the climate crisis

Posted Apr 2008
21:28

Karen Armstrong

My wish: The Charter for Compassion

Posted Mar 2008
25:35

Dave Eggers

My wish: Once Upon a School

Posted Mar 2008
44:38

Frank Gehry

My days as a young rebel

Posted Mar 2008
18:19

Jill Bolte Taylor

My stroke of insight

Posted Mar 2008
15:54

Craig Venter

On the verge of creating synthetic life

Posted Mar 2008
5:26

Joseph Lekuton

A parable for Kenya

Posted Feb 2008
19:31

Howard Rheingold

The new power of collaboration

Posted Feb 2008
17:25

Michael Pollan

A plant's-eye view

Posted Feb 2008
12:55

Chris Anderson

TED's nonprofit transition

Posted Jan 2008
18:00

Isabel Allende

Tales of passion

Posted Jan 2008