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  1. #1
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    Researchers: Climate change is turning Earth’s northern latitudes green



    Researchers: Climate change is turning Earth’s northern latitudes green

    Researchers caution that plant growth in the north may not stay on its current trajectory because an amplified greenhouse effect will increase the frequency of forest fires, droughts and pest infestations.

    Reporting in the journal Nature Climate Change, an international team of researchers writes that the northern latitudes have experienced a significant reduction in temperature and vegetation seasonality. They contend that vegetation growth at Earth’s northern latitudes is starting to look a lot like the green latitudes to the south. The study’s findings are based on a 30-year record of land surface and satellite data sets.

    The researchers looked at the relationship between changes in surface temperature and vegetation growth from 45 degrees north latitude to the Arctic Ocean. The study’s findings reveal that temperature and vegetation growth at northern latitudes now appear like those found 4 degrees to 6 degrees of latitude farther south as recently as 1982.

    Lead co-author Liang Xu, a Boston University doctoral student, says that increased warming in the northern latitudes above the Canada-USA border is lowering temperature seasonality because the colder seasons are warming faster than the summer.

    Researchers note that total amount of heat available for plant growth in these northern latitudes is increasing because of the reduction in temperature seasonality. The extra heat is turning Earth’s northern latitudes green. Patches of “vigorously productive vegetation” are now equal to an area approximately the size of the United States.


    Researchers: Climate change is turning Earth’s northern latitudes green | Science Recorder

  2. #2
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    It would be interesting to ask if such climate and growth patterns are similar within the counterpart [45 north or south] of Southern Hemisphere temperate lattitudes?

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