There is space for carbon storage underground
(Climate News Network, 27 May 2020) Capturing it remains a challenge. But there should be no lack of permanent safe carbon storage underground.
There is plenty of room for more of the main greenhouse gas on this planet – as long as it’s caught and trapped in carbon storage underground. New research confirms that when it comes to storage space, there should be no problem about carbon capture and sequestration, known to climate engineers as simply CCS.
Carbon capture is written into intergovernmental plans to combat climate change: the theory is that in addition to stepping up investment in renewable energy such as solar and wind power, existing power plants that run on coal, oil and gas could trap the waste carbon dioxide and literally take it out of atmospheric circulation.
How and on what scale this could be done is still a matter for global debate. But at least there is no problem about whether there is safe storage for the compressed and liquefied greenhouse gas.
New analysis from two scientists at Imperial College London in the journal Energy & Environmental Science suggests that if capture and storage accelerates now and continues at a growing rate, along with other recommended action, then no more than about 2,700 billion tonnes of carbon dioxide would need to be pumped back down abandoned oil shafts and other reservoirs, to keep global warming to less than 2°C above pre-industrial levels by 2100. This is an international target agreed in Paris in 2015.
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Climate News Network, 27 May 2020: There is space for carbon storage underground
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