How Much Will Sea Level Rise? Grab Your Towel

  • Published: June 18th, 2012

Sea level is on the rise, which means my excellent day at the Jersey Shore might not be so much fun a few decades from now.

Watch 131 Years of Global Warming in 26 Seconds

  • Published: January 28th, 2012

An amazing 26-second video depicting how temperatures around the globe have warmed since 1880.

Frank von Hippel on Nuclear Energy and Weapons Proliferation

  • Published: April 26th, 2011

Reactor accidents and radiation leaks aren't the only risks with nuclear energy; nuclear weapons are another problem.

M.V. Ramana on Safety at Nuclear Power Plants

  • Published: April 23rd, 2011

Engineers who design nuclear plants can plan a worst case scenario, but this may not be enough to prevent all accidents.

How Do We Know: Shrinking Arctic Sea Ice

  • Published: January 10th, 2011

Learn how NASA scientists are tracking the melting Arctic sea ice and what less ice means for global warming in the future.

How Do We Know: Tracking CO2 Emissions

  • Published: December 21st, 2010

Scientist David Crisp explains how NASA tracks regional carbon dioxide (CO2) emissions from space.

How Do We Know: Thinning Sea Ice

  • Published: November 29th, 2010

NASA scientist Ron Kwok details new technology he is using to monitor how extensively Arctic sea ice is melting from below, a key indicator of the ice's long-term stability.

How Do We Know: Groundwater

  • Published: November 9th, 2010

NASA scientist Michael Watkins explains how satellites are used to monitor our changing global groundwater supplies.