2 thoughts on “This Photo Sums Up Just How Fast Greenland Is Melting

  1. Butterfly effect says:

    Millions of people in the South Indian city of Chennai, the country’s sixth largest metropolis, are facing an acute water shortage as the main reservoirs have dried up after a poor monsoon season. (CBS News 6/20/19) https://www.cbsnews.com/news/chennai-water-crisis-millions-rely-wells-trucks-environmentalists-cite-climate-change-today-2019-06-20/
    Ecologist and biodiversity expert Dr. Jayashree Vencatesan has studied 200 years worth of data on Chennai’s monsoon seasons. She told CBS News the data analysis by herself and other researchers at the Care Earth Trust show a marked change around nine years ago; while the overall amount of rain has remained roughly the same, the number of days with rainfall have reduced drastically. In other words, more days with severe downpours and less steady, sustained rainfall. That leads to more quick runoff and less flowing in a controlled way into reservoirs.
    “This may be a case of climate change,” she said.
    Climate scientists have warned that the increase in average global temperatures appears to be causing earlier melting of Arctic ice, which can have a broad impact on the Earth’s climate over the course of a year — bringing exactly the kind of dramatic changes in weather patterns that the data from India reflect.
    See also “Risk assessment of extreme precipitation in the coastal areas of Chennai as an element of catastrophe prevention” https://www.academia.edu/14258895/Risk_assessment_of_extreme_precipitation_in_the_coastal_areas_of_Chennai_as_an_element_of_catastrophe_prevention

  2. Cassandra says:

    “Greenland is losing ice seven times faster than in the 1990s and is tracking the Intergovernmental Panel on Climate Change’s high-end climate warming scenario, which would see 400 million more people exposed to coastal flooding by 2100.” https://phys.org/news/2019-12-greenland-ice-losses-faster.html
    A team of 96 polar scientists from 50 international organizations have produced the most complete picture of Greenland ice loss to date. The Ice Sheet Mass Balance Inter-comparison Exercise (IMBIE) Team combined 26 separate surveys to compute changes in the mass of Greenland’s ice sheet between 1992 and 2018. Altogether, data from 11 different satellite missions were used, including measurements of the ice sheet’s changing volume, flow and gravity.
    The findings, published today in Nature today, show that Greenland has lost 3.8 trillion tonnes of ice since 1992—enough to push global sea levels up by 10.6 millimetres. The rate of ice loss has risen from 33 billion tonnes per year in the 1990s to 254 billion tonnes per year in the last decade—a seven-fold increase within three decades.
    Nature today (12/10/19): “Mass balance of the Greenland Ice Sheet from 1992 to 2018” https://www.nature.com/articles/s41586-019-1855-2

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