Should we say farewell to the Arctic's unique nature?

Temperatures are rising faster in the Arctic than any other place on Earth. If these changes continue, it is likely that the unique and diverse Arctic tundra will change into a more uniform vegetation dominated by shrubs.

Gaining a bird's eye view of the greening of the Arctic

University of Virginia terrestrial ecologist Howie Epstein has won a $607,000 NASA grant to use Earth-observing satellite data to assess how vegetation diversity is changing in the Arctic tundra.

Piecing together our planet pixel by pixel

At first glance, the high-resolution images of the polygons look like the lacy skin of a cantaloupe melon – perhaps not what would be expected of images of the Arctic tundra. But this characteristic feature of the tundra ...

How fires are changing the tundra's face

Climate change takes a heavy toll on the tundra, increasing the probability of extreme droughts. As a result, the frequency of fires in forests, bogs and even wetlands continues to rise. In addition, the northern areas of ...

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