More New Studies Affirm Rising CO2 Leads To Land Surface Cooling By Driving Earth’s Greening Trends

CO2-induced greening may reduce land surface temperatures by -0.7°C over the next 80 years.

Earlier this year we highlighted a new study indicating the rising greening trends in the last four decades can be attributed to the change in precipitation patterns and “the physiological impact of rising CO2.”

Greening-induced increases in evapotranspiration lead, in turn, to an increase in the global cloud cover. Increases in cloud cover reduce incoming solar radiation. A decline in incoming solar radiation cools the surface.

So rising CO2 concentrations ultimately contribute to global-scale greening, and, consequently, to a surface cooling that offsets warming projections.

Image Source: Wu et al., 2022

Another new study indicates the “greening-triggered energy imbalance…causes sizable time-lagged climate effects.”

From 1982-2014 Northern Hemisphere greening led to warmer winters (2 months of the year), but land surface cooling for the other 10 months. The overall greening-induced cooling reduced Northern Hemisphere temperatures by -0.14°C during this period, as the summer (June-August) cooling amounted to a “strong and significant” -0.044°C per decade.

Image Source: Lian et al., 2022

Alkama et al. (2022) report that the “emerging greening signal has been detected by satellites in the last three and a half decades and attributed to the increase in atmospheric CO2.” They quantify the estimates for CO2-induced greening/cooling by 2100 at -0.71°C.

Probably because it doesn’t advance the anti-fossil fuel energy agenda, Alkama and colleagues point out that the cooling effects of CO2-induced global greening “are largely ignored in climate treaties”.

Image Source: Alkama et al., 2022

Other recent studies support the conclusion that rising CO2 greens the Earth and “Earth greening cools land surface temperatures.” It’s as if there’s a consensus.

Image Source: Chen et al., 2020

Image Source: Piao et al., 2020

6 responses to “More New Studies Affirm Rising CO2 Leads To Land Surface Cooling By Driving Earth’s Greening Trends”

  1. Raymond Børeng

    Maybe, but both H2O will have adsorption and reflection. In a thick cloud area it will give warming in north and south but cooling in the tropick. Sun, lane rotation and distanse what about that?

  2. pochas94

    Well, what do you know?? The response of the Climate Consortium to this will be of intense interest.

  3. Phil Salmon

    We’re being told that the earth is browning and warning.
    Well it seems that instead it’s greening and cooling.

  4. Richard Greene

    Nature has always offset some of the manmade CO2 emissions
    and greening of our planet will encourage more of that.

    “Greening-induced increases in evapotranspiration lead,
    in turn, to an increase in the global cloud cover.”

    But higher ambient CO2 levels reduce plant transpiration
    — one of the benefits of CO2 enrichment
    — reduces their fresh water requirements.

    A warmer troposphere will also hold more water vapor.
    Whether that will result in more clouds
    is more speculation than proven fact.

    A report on what may happen in 70 years
    is not based om data.
    There are no data for the future.
    The report is speculation.
    Most speculators are wrong.
    Almost all past predictions of the climate have been wrong.

  5. Paul James

    *How can CO2 be so abundant in the atmosphere that it is causing a greenhouse effect? Gases are weighed according to their “Vapor Density.”*

    The relative weight of a gas or vapor compared to air, which has an arbitrary value of one. If a gas has a vapor density of less than one it will generally rise in air. If the vapor density is greater than one the gas will generally sink in air. And this: At standard temperature and pressure, the density of carbon dioxide is around 1.98 kg/m3, about 1.5 times that of air.

    CO2 has a vapor density of 1.53, which means its quite a bit heavier than air. So the CO2 that is generated on the planet’s surface stays down low & the CO2 produced in the skies will drift down to the planet, so where’s the greenhouse effect coming from?

    Or did they rewrite the laws of chemistry like the did the laws of Thermo-Dynamics on 9/11?

  6. geoff@large

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