Videos - Climate in Context

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.

Videos - Climate in Context

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.

Videos - Climate in Context

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.

Videos - Climate in Context

How Do We Know: Salty Seas

  • Published: November 3rd, 2010

Ocean salinity can have a big impact when it comes to changing climate. Learn how scientists are monitoring our salty seas.

Videos - Climate in Context

How Do We Know: Proof in the Pixels

  • Published: October 27th, 2010

Dr. Heidi Cullen talks to Dr. John Townshend about his current research which tracks rainforest deforestation.

Videos - Climate in Context

How Do We Know: Ocean Acidification

  • Published: October 12th, 2010

The atmosphere isn't the only place carbon dioxide caused by human activity goes.

Videos - Climate in Context

How Do We Know: Sea Level Rise

  • Published: October 5th, 2010

A warming planet could mean that sea levels rise three or more feet by the end of this century.

Videos - Extreme Weather

How Do We Know: Drought

  • Published: September 28th, 2010

How do we know when a region may be experiencing an early drought? Dr. Heidi Cullen talks to NASA scientist Molly Brown, who relies on sophisticated satellites for the answer.