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4:49
TED-Ed
Why good ideas get trapped in the valley of death -- and how to rescue them
4:26
TED-Ed
How much land does it take to power the world?
4:41
TED-Ed
How much electricity does it take to power the world?
56:45
Al Gore
The new urgency of climate change
13:00
Rose M. Mutiso
How to bring affordable, sustainable electricity to Africa
8:53
Marjan van Aubel
The beautiful future of solar power
10:45
Majd Mashharawi
How I'm making bricks out of ashes and rubble in Gaza
5:31
DeAndrea Salvador
How we can make energy more affordable for low-income families
10:15
Hannah Bürckstümmer
A printable, flexible, organic solar cell
11:03
Tomás Saraceno
Would you live in a floating city in the sky?
40:50
Elon Musk
The future we're building -- and boring
7:59
Deepika Kurup
A young scientist's quest for clean water
14:51
Christiana Figueres
The inside story of the Paris climate agreement
7:24
Harald Haas
Forget Wi-Fi. Meet the new Li-Fi Internet
8:07
Gianluca Ambrosetti
A local, sustainable solution to the energy crisis
4:27
Alexandros Charalambides
Why aren't we only using solar power?
21:04
Elon Musk
The mind behind Tesla, SpaceX, SolarCity ...
14:45
Jonathan Trent
Energy from floating algae pods
11:35
Wolfgang Kessling
How to air-condition outdoor spaces
27:10
Amory Lovins
A 40-year plan for energy
18:35
David MacKay
A reality check on renewables
16:46
Paul Gilding
The Earth is full
14:29
Bilal Bomani
Plant fuels that could power a jet
17:46
Bertrand Piccard
My solar-powered adventure
21:20
Paul MacCready
A flight on solar wings
19:55
Bill Gross
A solar energy system that tracks the sun
22:48
Paul MacCready
Nature vs. humans
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