As a result, the scenery in the Arctic is greener. NASA has been using satellites to track global tundra ecosystems for decades. A new study has found that the Arctic is getting greener because warm air and soil temperatures lead to increased plant growth. The Arctic is one of the coldest communities on earth, and it is also one of the fastest warming regions. < / P > < p > researchers Logan Berner said the ongoing greening of the Arctic is a harbinger of global climate change, which they call a biological scale response to rising air temperatures. The study he and his team published is the first to use Landsat satellite data to measure vegetation change across the Arctic tundra, from Alaska and Canada to Siberia. < / P > < p > the researchers pointed out that greening can mean more plants growing, becoming denser, and / or shrubs encroaching on typical Tundra and bryophytes. As the tundra changes, it affects the wildlife that depends on certain plants and the people who live in the area and depend on the ecosystem for food. Plants do absorb more carbon from the atmosphere, but warmer temperatures could thaw permafrost and release more greenhouse gases. < / P > < p > this study was completed as part of NASA’s Arctic cold belt vulnerability experiment to better understand how ecosystems respond to a warming environment and wider social impacts. Berner and other researchers in the project used Landsat data and additional calculations to determine annual green peaks at 50000 randomly selected sites across the tundra. < / P > < p > from 1995 to 2016, about 38% of the tundra sites in Alaska, Canada and western Eurasia were green. Only 3% showed the opposite browning effect, which means less active plants. When looking at sites in eastern Eurasia, the researchers compared data from 2000, when satellites began collecting images on a regular basis, they found that between 2020 and 2016, 22% of the sites turned green and 4% were brown. [image] Google secretly tests 6GHz networks in 17 states of the United States

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