11 Feb 2013:
Is Launched by NASA at Crucial Moment
NASA is expected to launch today its newest Earth-observing satellite, Landsat 8,
at a time when previous Landsat satellites have either stopped working or have developed serious technical problems. NASA scientists say the launch of the $855 million satellite from Vandenberg Air Force Base in California is vital to the space agency’s mission of monitoring the Earth during a period of unprecedented environmental change
— from disappearing glaciers and sea ice, to widespread forest loss, to intensifying destruction from natural disasters. The first Earth-observing satellite, Landsat 1, was launched in 1972. Today, two Landsat satellites remain functional, but NASA engineers have struggled to fix problems with the satellites, including the failure of transmitters to send images back to Earth and a sensor problem on Landsat 7 that blanks out a fifth of each image it collects. Ted Scambos, a senior scientist at the National Snow and Ice Data Center, called Landsat satelites a “phenomenal” tool for documenting the loss of ice sheets and sea ice, adding, “Landsat 8 couldn't come at a better time, because of the way things are changing right now.”
Yale Environment 360 is
a publication of the
Yale School of Forestry
& Environmental Studies
Yale Environment 360
articles are now available in Spanish and Portuguese on Universia
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Business & Innovation
Policy & Politics
Pollution & Health
Science & Technology
Antarctica and the Arctic
Central & South America
Tribal people and ranchers join together to stop a project that would haul coal across their Montana land. Watch the video.
is now available for mobile devices at e360.yale.edu/mobile
An aerial view of why Europe’s per capita carbon emissions are less than 50 percent of those in the U.S. View the photos.
Ugandan scientists monitor the impact of climate change on one of Africa’s most diverse forests and its extraordinary wildlife. Learn more.
video series looks at the staggering amount of food wasted in the U.S. – a problem with major human and environmental costs. Watch the video.
video goes onto the front lines with Colorado firefighters confronting deadly blazes fueled by a hotter, drier climate. Watch the video.
A three-part series Tainted Harvest
looks at the soil pollution crisis in China, the threat it poses to the food supply, and the complexity of any cleanup. Read the series.