• going backwards -- Xingu R hydro project triples CO2/CH4 emissions

    From MrPostingRobot@kymhorsell.com@21:1/5 to All on Mon Jun 28 21:02:53 2021
    XPost: alt.global-warming

    How green can Amazon hydropower be? Net carbon emission from the
    largest hydropower plant in Amazonia

    Science Advances via Carbon Brief

    The Belo Monte dam - built on the Xingu River in Eastern Amazonia -
    has caused a threefold increase in emissions of methane and carbon
    dioxide (CO2), a new study finds. The authors measured methane
    emissions at multiple sites on the Belo Monte reservoirs and
    downstream of the dam, as well as methane and CO2 emissions from the
    soils of islands and marginal areas of the Xingu River. They find that "reducing flooded areas and prioritising the power density of
    hydropower plants" lowers the emissions of Amazonian reservoirs. The
    study argues that, as dams increase emissions in the area, hydropower
    expansion in Amazonia should be avoided, "regardless of the reservoir type".

    Upcoming events:
    9 Jul 2021 NOAA bn Dollar Disasters Q2

    "Online Haters" Are Psychopaths, Recent Study Finds.
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    Recently published research finds that "online haters" or people who
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    Geophysical Research Letters
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    Climate influence on the 2019 fires in Amazonia
    Science of The Total Environment
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    by drier fuel, driven by low precipitation and relative humidity,
    according to new research. The authors find that the dry conditions
    are linked to "southerly wind anomalies over southern Amazonia",
    driven by changing sea surface temperature patterns in the Indian
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    in the tropical eastern Pacific link the warm phase of the El
    Niņo-Southern Oscillation (ENSO) in the preceding Dec-Jan to
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