Immense and implausible increase needed in global carbon capture and…

immense-and-implausible-increase-needed-in-global-carbon-capture-and…

Immense and implausible increase needed in global carbon capture and…

Immense and implausible increase needed in global carbon capture and storage, to remove aviation etc CO2
2022-08-16 13:10:00
The UK has no proper policy to decarbonise aviation.  Instead it hopes there will be breakthroughs in aircraft technology and a vast increase in “sustainable” aviation fuels (SAF) which – miraculously – will not compete or conflict with other sectors, or cause other environmental problems.  And they are hoping much of the carbon that aviation will continue to emit will be (magically) removed from the air and stored permanently underground (CCS). So far the success of carbon capture plants has been underwhelming. Hardly any carbon has been stored underground. Indeed, even if the global capacity for CCS was expanded very fast (40% per year or so) it is not economic. Unless the expensively captured carbon can be sold to another sector (another industry, greenhouse horticulture, making other fuels) it is not economic. There are estimates that the amount of CO2 that would have to be captured and permanently stored globally would be perhaps x1000 as much as now, just by the 2030s.  And the CO2 produced from agriculture, cement making etc – hard to electrify – would be in addition to that from aviation, requiring CCS.  In reality, the carbon capture hoped for is not going to happen, certainly not on the scale needed. .Tweet   Global CCS rates overestimated by up to 30% – Imperial College London 27.7.2022 By Oliver Gordon  (From Energy Monitor) Researchers at Imperial College London compared estimates of stored carbon with official reports and found that actual carbon stored is overestimated by 19–30%. The amount of carbon that has been captured and stored globally via carbon capture and storage (CCS) since 1996 has been overestimated by up to 30%, according to new research from Imperial College London. Imperial’s researchers compared estimates of stored carbon with official reports and found that the reports lead to overestimates of actual carbon stored by 19–30%. They calculate that 197 million tonnes of carbon were actually captured and stored between 1996 and 2020. A lack of consistent reporting frameworks is leading to this being overestimated in reports, giving an inaccurate picture of the technology’s contribution to fighting climate change. CCS aims to reduce the amount of carbon dioxide (CO2) in the atmosphere by capturing greenhouse gas emissions at source and storing them underground. The Intergovernmental Panel on Climate Change has said the technology will be key to reaching the goal of net-zero emissions by 2050. Currently, the most centralised and up-to-date information on capture rates comes from the annual reports and databases of think tanks. However, these report CCS activity according to the capacity of facilities rather than actual carbon stored. As of 2021, they estimated global capture capacity at 40 million tonnes per year across 26 operational CCS facilities. No centralised framework exists to compel the reporting of precise amounts of carbon captured, so actual rates of capture, transport and storage are not consistently reported or centrally gathered. This leads to CCS’s impact being overestimated, the researchers say. They suggest reporting frameworks should include key details like intended capture rate capacity, maximum capture rate capacity, annual capture of CO2, annual transport of CO2, annual storage of CO2, quality assurance measures such as third-party auditing and reasons for any offline periods where the CCS facility could not operate as intended. “Carbon capture and storage is rightly a cornerstone of climate change mitigation, but without a centralised reporting framework we approach climate change on the back foot when we need to be more proactively tackling the issue with robust and accurate reporting,” says the report’s lead author Yuting Zhang, a PhD candidate at the Department of Earth Science and Engineering at Imperial College London. Even based on current reporting, CO2 capture accounted for only 0.12% of total emissions in 2020. https://www.energymonitor.ai/tech/carbon-removal/global-ccs-rates-overestimated-by-up-to-30-imperial   Going giga: The race to scale up the direct air capture industry 1st August 2022 Construction has begun in Iceland on the world’s largest direct air capture facility to date, as the industry looks to scale at a pace rarely seen in the history of commercial markets. Net zero depends on it. By Oliver Gordon (Energy Monitor) The Intergovernmental Panel on Climate Change (IPCC) has warned that to limit global warming to 1.5°C, the world will need to remove billions of tonnes of carbon from the atmosphere – and that’s on top of the vast quantities of emissions cuts also required. However, last month, on a grassy, far-flung stretch of the Icelandic tundra, an important step was taken towards that aspiration: Swiss company Climeworks broke ground on its newest and largest direct air capture and storage (DAC+S) facility to date, Mammoth. Carbon collectors at Climeworks’s Orca DAC facility in Iceland. (Photo by Climeworks) Although it sounds straight out of a sci-fi novel, DAC is a technology that uses machines to react with and capture CO2 molecules from the atmosphere. Mammoth –

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