![]() In its latest review of scientific research, the Intergovernmental Panel on Climate Change ( IPCC) found both options will be needed for emissions that are hard to wipe out. For chemical processes that release carbon dioxide, there are few alternatives to capturing CO2 straight away or sucking it out of the air later. The key difference is that CDR brings down the level of carbon dioxide in the atmosphere, cooling the planet, while CCS in fossil fuel plants and factories prevents the gas from getting out in the first place. It is different to carbon dioxide removal (CDR) - where carbon is sucked out of the atmosphere - although some of the technologies overlap. "Some applications can be just a fig leaf for keeping fossil fuel business models alive." Capturing carbon from waste incinerators could be particularly helpful for cities trying to reach net-zero emissions this decade Image: Ida Guldbaek Arentsen/Ritzau Scanpix/AFP What is carbon capture and storage?Ĭarbon capture and storage (CCS) is a way to catch carbon and trap it beneath the earth. There are cases where capturing carbon makes a lot of sense - but we also need to push all the options to avoid CO2 in the first place, said Georg Kobiela, an expert in cleaning up industry at the environmental nonprofit Germanwatch. A key tool to stop climate change is costly and has for decades not worked as well as fossil fuel companies said it would.Įxperts say carbon capture and storage - a way to grab a planet-heating gas and lock it underground - is sorely needed to cut pollution in sectors where other clean technologies are farther behind.
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