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How will climate change shift the tundra - taiga interface?

Submitted by ORNL DAAC Staff on
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MODIS true-color, cloud-free composite of the northern hemisphere in 2001. The circumpolar taiga-tundra ecotone benchmarked in this study is about 13,400 km long (Image source: NASA).

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Ranson et al. used MODIS data to map tree cover at the Earth's longest vegetation transition zone.

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Burned but not forgotten

Submitted by ORNL DAAC Staff on
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In this photograph, taken eleven years after the Charlton Fire in Oregon's Willamette National Forest, a majority of snags still stand while gradually new vegetation is growing. (Courtesy M. Spencer)

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Decades after a fire, high-elevation forests still shape the climate.

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Cities, traffic, and CO2

Submitted by ORNL DAAC Staff on
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Tons of CO2 emitted from vehicles in 2012 from the Database of Road Transportation Emissions.

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Covering 33 years of traffic across the U.S. on a one-kilometer grid, the new DARTE inventory offers a baseline for efforts to limit carbon dioxide emissions.
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