The practice of capturing CO2 emissions - typically from coal-fired power plants - and sequestering it in geological formations such as depleted oil and gas fields.
The technology is yet to be successfully demonstrated at large scale power plants, and critics maintain that there are concerns about the high cost of CCS and the risks associated with the stored carbon leaking back into the atmosphere.
But advocates of CCS argue it is technically feasible to capture and store carbon dioxide in large quantities and insist its deployment is essential if emissions from coal dependent economies such as the US, China and Australia are to be reduced.
UN confirms 87 of the world's largest companies have committed to emissions targets in line with 1.5C warming trajectory
Lower emissions from the health service will not only benefit the climate but also offer greater therapeutic value to patients and help to aid recovery, Labour says
A round up of green business news from around the world
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Business Declares initiative launches in support of Global Strike, as millions around the world take to streets to demand climate action