Surprising Math of Biology, Cities, and Corporations (TED Talks)

Physicist Geoffrey West has found that simple, mathematical laws govern the properties of cities -- that wealth, crime rate, walking speed and many other aspects of a city can be deduced from a single number: the city's population. In this mind-bending talk from TEDGlobal he shows how it works and how similar laws hold for organisms and corporations.

TED Talks: Energy Innovation to Zero CO2 by Bill Gates

Net CO2 = People * Services per person * Energy per service * CO2 per energy unit

TED Talks: Debate on Nuclear Energy

An interesting debate between Prof. Mark Jacobson from Stanford University and Innovator Stewart Brand @ TED Talks

Kamal Meattle on "How to Grow Fresh Air" (TED Talks)

Researcher Kamal Meattle shows how an arrangement of three common houseplants, used in specific spots in a home or office building, can result in measurably cleaner indoor air.

Amory Lovins on "Winning the Oil Endgame" (TED Talks)

In this energizing talk, Amory Lovins lays out his simple plan for weaning the US off oil and revitalizing the economy.

James Balog - Time Lapse Proof of Extreme Ice Loss (TED Talks)

Moving Windmills: The William Kamkwamba Story

Details @ Moving Windmills

How I Harnessed Wind by William Kamkwamba (TED Talks)

Share Data - Role of Internet by Jonathan Zittrain (TED Talks)

Hans Rosling on "Importance of Data & Information" (TED Talks)

Shai Agassi on "Bold Plan to Mass Produce Electric Vehicles" (@ TED Talks)

David Keith on "Unusual Ways to Tackle Climate Change" (@ TED Talks)

Al Gore on Climate Crisis (@ TED Talks)