Team warns negative emissions technologies may not solve alleged climate crisis

Posted: August 25, 2020 by oldbrew in alarmism, Emissions
Tags: , ,

Photosynthesis: nature requires carbon dioxide


Wrong diagnosis, unworkable cures? All is not well in the strange world of climate hysteria, as its promoters flounder in the mire of their own creation. Crippling costs could sink their supposed solutions.
– – –
A team led by researchers at the University of Virginia cautions that when it comes to climate change, the world is making a bet it might not be able to cover, says Phys.org.

The team’s new paper in Nature Climate Change explores how plans to avoid the worst outcomes of a warming planet could bring their own side effects.

The handful of models the United Nations Intergovernmental Panel on Climate Change and decisions makers around the world trust to develop strategies to meet carbon neutrality commitments all assume negative emissions technologies will be available as part of the solution.

Negative emissions technologies, often called NETs, remove carbon dioxide from the atmosphere. The three most widely studied approaches are bioenergy with carbon capture and storage, which entails growing crops for fuel, then collecting and burying the CO2 from the burned biomass; planting more forests; and direct air capture, an engineered process for separating CO2 from the air and storing it permanently, likely underground.

“The trouble is, nobody has tried these technologies at the demonstration scale, much less at the massive levels necessary to offset current CO2 emissions,” said Andres Clarens, a professor in UVA Engineering’s Department of Engineering Systems and Environment and associate director of UVA’s pan-University Environmental Resilience Institute.

The institute partially funded the research leading to the Nature Climate Change paper.

“Our paper quantifies their costs so we can have an honest conversation about it before we start doing this on a large scale,” Clarens said.

Since the Paris Agreement to limit global warming to 1.5 degrees Celsius, hammered out by world leaders in 2015, a growing number of corporations such as BP and many institutions and governments—including UVA and Virginia—have committed to reaching zero carbon emissions in the next few decades.

Full article here.

Comments
  1. cognog2 says:

    CO2 is vital for plant life. Currently levels are at an historical low; so why are we getting so het up about it?

  2. oldbrew says:

    AUGUST 25, 2020
    Potential of achieving climate target with bioenergy is limited

    Large-scale implementation of bioenergy with carbon capture and storage (BECCS) is often considered to be an important measure to reach the climate targets set out in the Paris Agreement. A new study from researchers at Radboud University, Utrecht University and the PBL Netherlands Environmental Assessment Agency shows, however, that over a period of 30 years, BECCS can only play a modest role.
    . . .
    Large amounts of land required

    Full global implementation of BECCS to reach the climate targets would, however, lead to large land requirements, possibly leading to competition with other land uses such as food production and biodiversity protection. In the most extreme cases, up to 0.8 to 2.4 billion hectare of land is required by 2100 to grow lignocellulosic crops for BECCS, which equals 5 to 16% of the total land surface area on Earth.

    https://phys.org/news/2020-08-potential-climate-bioenergy-limited.html
    – – –
    Another proposed wonder ‘solution’ gets cut down to size.

  3. JB says:

    “The permanent misfits are those who because of a lack of talent or some irreparable defect in body or mind cannot do the one thing for which their whole being craves. No achievement, however spectacular, in other fields can give them a sense of fulfillment. Whatever they undertake becomes a passionate pursuit; but they never arrive, never pause. They demonstrate the fact that we can never have enough of that which we really do not want, and that we run fastest and farthest when we run from ourselves. The permanent misfits can find salvation only in a complete separation from the self; and they usually find it by losing themselves in the compact collectivity of a mass movement. By renouncing individual will, judgment and ambition, and dedicating all their powers to the service of an eternal cause, they are at last lifted off the endless treadmill which can never lead them to fulfillment. The most incurably frustrated—and, therefore, the most vehement—among the permanent misfits are those with an unfulfilled craving for creative work.” P47 The True Believer, Eric Hoffer

  4. oldbrew says:

    No end to lunacy in climate dreamland…here comes Direct Air Capture [DAC].

    Climate change: Removing CO2 could spark big rise in food prices
    By Matt McGrath
    Environment correspondent
    24 August 2020

    This new study looks at the large-scale deployment of a range of negative emissions technologies including DAC.

    The report says that the energy and water resources needed to drive these machines will be on a very large scale.

    DAC will need large amounts of heat to make the process work, say the authors. This would require energy equal to 115% of current global natural gas consumption.

    https://www.bbc.co.uk/news/science-environment-53891414
    – – –
    energy equal to 115% of current global natural gas consumption

    Using gas to remove CO2 from air…my aching sides 🤣
    Where is all this extra gas? Give us a break.

  5. saighdear says:

    Huh , stating / asking the obvious, or not ? Who pays the wages to get all this Tripe?
    How much ENERGY is consumed in the production & Dissipation of the tripe: Like Wall warts – every little “helps” depending on your p.o.v.

  6. gbaikie says:

    –“The trouble is, nobody has tried these technologies at the demonstration scale, much less at the massive levels necessary to offset current CO2 emissions,” said Andres Clarens–

    How about trouble of being sued because you to taking away our CO2.
    More CO2 makes plants grow better and could increase the global temperature in our
    current Ice Age.
    Any fool knows warming is better to cooling if living in an Ice Age.
    We can easily cool Earth, nobody wants a cooler Earth.

  7. pochas94 says:

    Fear + Precautionary Principle => Job Security

  8. Paul Vaughan says:

    doubles peak

    transit fear = precautionary principle:

    https://txtify.it/ctvnews.ca/autos/first-time-buyers-driving-up-vehicle-sales-as-pandemic-shifts-attitudes-on-transportation-1.5078759

    only works for those with job security

    summary:
    do and say opposite

    homeless will have orders-of-magnitude smaller carbon footprints than those WHO “cancelled” them

  9. Doonhamer says:

    Once all the Oxygen is captured and buried deep underground the problem is solved.
    Then Gaia can start from scratch.

  10. tom0mason says:

    May I suggest some small changes …
    Not Useful Technologies, often called NUTs , expensively remove carbon dioxide from the atmosphere. The three most widely studied approaches are bioenergy with carbon capture and storage, which entails (immorally) growing mostly food crops for fuel, then collecting and burying the CO2 from the burned biomass; planting more forests; and a hideously expensive direct air capture, an engineered process for separating CO2 from the air and storing it hopefully permanently and maybe safely, likely underground.
    🙂

    IMO —
    If this useless idea ever comes to fruition on a scale they talk about, then the atmospheric/ocean pressure (pCO2) would change, the oceans would reassert the CO2 levels back to where nature demands (for the temperature at the time) by out gassing more CO2.
    Nature is in full control of atmospheric CO2 level not humans.
    Andres Clarens, a professor in UVA Engineering’s Department of Engineering Systems and Environment, so called ‘research’ is driven by the ‘who pays the piper calls the tune’ school of very corrupt science!

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