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Another New Study Finds Rising CO2 Enhances Planetary Greening, Reduces Drought Risk

by Kenneth Richard
August 15, 2024, 9:54 AM
in Agriculture, News and Opinion
Reading Time: 2 mins read
A A
3

crop harvest

One of the more commonly stated concerns linked to “global warming” is that sweltering heat will parch the terrestrial landscape (browning), limit vegetation growth, and foment water shortages – even widespread drought.

However, a new study suggests the Earth’s rising CO2 concentration has the exact opposite effect in the real world.

In their extensive trend analysis spanning the last few decades, the scientists determined elevated CO2 was the single most “dominant driver” (accounting for 45% of the correlation) when assessing the link between reducing vegetation water demand and improved water use efficiency.

“…elevated CO2 concentrations not only boosted vegetation growth through the fertilizer effect but also indirectly enhanced water availability [reducing drought risk] by improving water use efficiency.” – Song et al., 2024

Compared to CO2, for example, temperature and precipitation play a far less significant role (10-11% of the correlation) in influencing the trend in improved vegetation growth and water use efficiency.

“The CO2 fertilization effect has benefits for both vegetation growth and water use efficiency (WUE).”

“…elevated CO2 concentrations could indirectly enhance water availability by improving [water use efficiency]…reducing vegetation water demand.”

Image Source: Song et al., 2024

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Comments 3

  1. Spurwing Plover says:
    1 year ago

    Calling CO2 a Pollutant is stupid and based upon politics and Junk Science which is what the whole Global Warming/Climate Change scam is based upon

    Reply
  2. SPURWING PLOVER says:
    1 year ago

    Those who think CO2 is a Pollutant is either Stupid or a Liberal Eco-Freak but then again Liberal Eco-Freaks are Stupid

    Reply
  3. Steve Bunten says:
    1 year ago

    I read a book that talked about the WUE several years ago that with higher levels of CO2 plants can bring in the needed CO2 for synthesis more quickly meaning it won’t lose as much water while absorbing the CO2. Hence more efficient use of water so the plants don’t need to suck up as much water from the ground. But let’s pretend that doesn’t actually happen and that higher CO2 is BAAAAD!

    Reply

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