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How Much Will Sea Level Rise? Grab Your Towel Watch Video

How Much Will Sea Level Rise? Grab Your Towel

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 Watch Video

Watch 131 Years of Global Warming in 26 Seconds

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

Frank von Hippel on Nuclear Energy and Weapons Proliferation Watch Video

Frank von Hippel on Nuclear Energy and Weapons Proliferation

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 Watch Video

M.V. Ramana on Safety at Nuclear Power Plants

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 Watch Video

How Do We Know: Shrinking Arctic Sea Ice

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 Watch Video

How Do We Know: Tracking CO2 Emissions

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

How Do We Know: Thinning Sea Ice Watch Video

How Do We Know: Thinning Sea Ice

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 Watch Video

How Do We Know: Groundwater

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