James Hansen: Why I must speak out about climate change

TED2012

James Hansen: Why I must speak out about climate change

1,361,479 views

Readability: 5.8


Top climate scientist James Hansen tells the story of his involvement in the science of and debate over global climate change. In doing so he outlines the overwhelming evidence that change is happening and why that makes him deeply worried about the future.

Andrew Stanton: The clues to a great story

TED2012

Andrew Stanton: The clues to a great story

3,368,135 views

Readability: 3.5


Filmmaker Andrew Stanton ("Toy Story," "WALL-E") shares what he knows about storytelling -- starting at the end and working back to the beginning. Contains graphic language ... (Note: this talk is not available for download.)

Bryan Stevenson: We need to talk about an injustice

TED2012

Bryan Stevenson: We need to talk about an injustice

5,425,828 views

Readability: 3.5


In an engaging and personal talk -- with cameo appearances from his grandmother and Rosa Parks -- human rights lawyer Bryan Stevenson shares some hard truths about America's justice system, starting with a massive imbalance along racial lines: a third of the country's black male population has been incarcerated at some point in their lives. These issues, which are wrapped up in America's unexamined history, are rarely talked about with this level of candor, insight and persuasiveness.

Susan Cain: The power of introverts

TED2012

Susan Cain: The power of introverts

20,451,695 views

Readability: 3.8


In a culture where being social and outgoing are prized above all else, it can be difficult, even shameful, to be an introvert. But, as Susan Cain argues in this passionate talk, introverts bring extraordinary talents and abilities to the world, and should be encouraged and celebrated.

Peter Diamandis: Abundance is our future

TED2012

Peter Diamandis: Abundance is our future

1,461,974 views

Readability: 4.7


Onstage at TED2012, Peter Diamandis makes a case for optimism -- that we'll invent, innovate and create ways to solve the challenges that loom over us. "I’m not saying we don’t have our set of problems; we surely do. But ultimately, we knock them down.”

Paul Gilding: The Earth is full

TED2012

Paul Gilding: The Earth is full

1,250,754 views

Readability: 4.1


Have we used up all our resources? Have we filled up all the livable space on Earth? Paul Gilding suggests we have, and the possibility of devastating consequences, in a talk that's equal parts terrifying and, oddly, hopeful.

Daniel Pauly: The ocean's shifting baseline

Mission Blue Voyage

Daniel Pauly: The ocean's shifting baseline

239,592 views

Readability: 3.8


The ocean has degraded within our lifetimes, as shown in the decreasing average size of fish. And yet, as Daniel Pauly shows us onstage at Mission Blue, each time the baseline drops, we call it the new "normal." At what point do we stop readjusting downward?

Paul Snelgrove: A census of the ocean

TEDGlobal 2011

Paul Snelgrove: A census of the ocean

310,653 views

Readability: 4


Oceanographer Paul Snelgrove shares the results of a ten-year project with one goal: to take a census of all the life in the oceans. He shares amazing photos of some of the surprising finds of the Census of Marine Life.

Kevin Allocca: Why videos go viral

TEDYouth 2011

Kevin Allocca: Why videos go viral

2,362,247 views

Readability: 4.5


Kevin Allocca is YouTube's Head of Culture & Trends, and he has deep thoughts about silly web video. In this talk from TEDYouth, he shares the 4 reasons a video goes viral.

Avi Rubin: All your devices can be hacked

TEDxMidAtlantic

Avi Rubin: All your devices can be hacked

1,176,024 views

Readability: 4.6


Could someone hack your pacemaker? Avi Rubin shows how hackers are compromising cars, smartphones and medical devices, and warns us about the dangers of an increasingly hack-able world.

Jeffrey Kluger: The sibling bond

TEDxAsheville

Jeffrey Kluger: The sibling bond

634,329 views

Readability: 4.1


Were you the favorite child, the wild child or the middle child? Jeffrey Kluger explores the profound life-long bond between brothers and sisters, and the influence of birth order, favoritism and sibling rivalry.

Tan Le: My immigration story

TEDxWomen 2011

Tan Le: My immigration story

1,191,145 views

Readability: 3.5


In 2010, technologist Tan Le took the TEDGlobal stage to demo a powerful new interface. But now, at TEDxWomen, she tells a very personal story: the story of her family -- mother, grandmother and sister -- fleeing Vietnam and building a new life.

Shlomo Benartzi: Saving for tomorrow, tomorrow

TEDSalon NY2011

Shlomo Benartzi: Saving for tomorrow, tomorrow

1,541,108 views

Readability: 3.2


It's easy to imagine saving money next week, but how about right now? Generally, we want to spend it. Economist Shlomo Benartzi says this is one of the biggest obstacles to saving enough for retirement, and asks: How do we turn this behavioral challenge into a behavioral solution?

Shilo Shiv Suleman: Using tech to enable dreaming

INK Conference

Shilo Shiv Suleman: Using tech to enable dreaming

591,717 views

Readability: 3.6


Has our technology -- our cell phones and iPods and cameras -- stopped us from dreaming? Young artist Shilo Shiv Suleman says no, as she demos "Khoya," her new storybook for iPad, which floats us through a magical world in 7 minutes of pure creativity.

Chris Bliss: Comedy is translation

TEDxRainier

Chris Bliss: Comedy is translation

737,251 views

Readability: 4.9


Every act of communication is, in some way, an act of translation. Writer Chris Bliss talks about the way that great comedy can translate deep truths for a mass audience.

Neil MacGregor: 2600 years of history in one object

TEDGlobal 2011

Neil MacGregor: 2600 years of history in one object

1,064,304 views

Readability: 4.6


A clay cylinder covered in Akkadian cuneiform script, damaged and broken, the Cyrus Cylinder is a powerful symbol of religious tolerance and multi-culturalism. In this enthralling talk Neil MacGregor, Director of the British Museum, traces 2600 years of Middle Eastern history through this single object.

Lucianne Walkowicz: Look up for a change

TEDxPhoenix

Lucianne Walkowicz: Look up for a change

273,221 views

Readability: 3.9


How often do you see the true beauty of the night sky? TED Fellow Lucianne Walkowicz shows how light pollution is ruining the extraordinary -- and often ignored -- experience of seeing directly into space.

Garth Lenz: The true cost of oil

TEDxVictoria

Garth Lenz: The true cost of oil

823,883 views

Readability: 4.9


What does environmental devastation actually look like? At TEDxVictoria, photographer Garth Lenz shares shocking photos of the Alberta Tar Sands mining project -- and the beautiful (and vital) ecosystems under threat.

Paul Conneally: How mobile phones power disaster relief

TEDxRC2

Paul Conneally: How mobile phones power disaster relief

368,006 views

Readability: 5.7


The disastrous earthquake in Haiti taught humanitarian groups an unexpected lesson: the power of mobile devices to coordinate, inform and guide relief efforts. At TEDxRC2, Paul Conneally shows extraordinary examples of social media and other technologies becoming central to humanitarian aid.

Simon Berrow: How do you save a shark you know nothing about?

TEDxDublin

Simon Berrow: How do you save a shark you know nothing about?

504,864 views

Readability: 4


They're the second-largest fish in the world, they're almost extinct, and we know almost nothing about them. In this talk, Simon Berrow describes the fascinating basking shark ("great fish of the sun" in Irish), and the exceptional -- and wonderfully low-tech -- ways he's learning enough to save them.

Lucien Engelen: Crowdsource your health

TEDxMaastricht

Lucien Engelen: Crowdsource your health

302,305 views

Readability: 3.4


You can use your smartphone to find a local ATM, but what if you need a defibrillator? Lucien Engelen shows us online innovations that are changing the way we save lives, including a crowdsourced map of local AEDs.

Tyrone Hayes + Penelope Jagessar Chaffer: The toxic baby

TEDWomen 2010

Tyrone Hayes + Penelope Jagessar Chaffer: The toxic baby

486,977 views

Readability: 4.9


Filmmaker Penelope Jagessar Chaffer was curious about the chemicals she was exposed to while pregnant: Could they affect her unborn child? So she asked scientist Tyrone Hayes to brief her on one he studied closely: atrazine, a herbicide used on corn. (Hayes, an expert on amphibians, is a critic of atrazine, which displays a disturbing effect on frog development.) Onstage together at TEDWomen, Hayes and Chaffer tell their story.

Drew Dudley: Everyday leadership

TEDxToronto 2010

Drew Dudley: Everyday leadership

3,880,487 views

Readability: 3.1


We have all changed someone's life -- usually without even realizing it. In this funny talk, Drew Dudley calls on all of us to celebrate leadership as the everyday act of improving each other's lives.

Keith Nolan: Deaf in the military

TEDxIslay

Keith Nolan: Deaf in the military

250,118 views

Readability: 3.8


Keith Nolan always wanted to join the United States military. The challenge: he is Deaf, which is an automatic disqualification according to military rules. In this talk, he describes his fight to fight for his country. (In American Sign Language with real-time interpretation by Rita Alexander)

Erik Johansson: Impossible photography

TEDSalon London Fall 2011

Erik Johansson: Impossible photography

3,851,306 views

Readability: 3.9


Erik Johansson creates realistic photos of impossible scenes -- capturing ideas, not moments. In this witty how-to, the Photoshop wizard describes the principles he uses to make these fantastical scenarios come to life, while keeping them visually plausible.

Sheikha Al Mayassa: Globalizing the local, localizing the global

TEDWomen 2010

Sheikha Al Mayassa: Globalizing the local, localizing the global

706,024 views

Readability: 4.3


Sheikha Al Mayassa, a patron of artists, storytellers and filmmakers in Qatar, talks about how art and culture create a country's identity -- and allow every country to share its unique identity with the wider world. As she says: "We don't want to be all the same, but we do want to understand each other."