Representatives of the carbon capture industry have challenged a paper released this week by a UN science body that questions the nascent technology's usefulness in trying to limit global warming. The Carbon Capture Coalition represents more than 100 companies working on direct air capture, carbon capture and storage technologies that governments as the United States and the private sector poured in billions of dollars to help commercialize the technology. It sent a May 25 letter to the UN-appointed advisory body criticizing its claim that carbon removal activities are "technologically and economically unproven" and "serve none of the goals" of a global carbon market called for in Article 6 of the Paris Climate Agreement of 2015. “Scaling up available engineering carbon dioxide removal (CDR) methods is increasingly recognized as a central component to compensation of emissions in those sectors where it is difficult to reduce emissions, such as shipping and air transport, and after 2050 to reduce the concentration of the remaining CO2. in the atmosphere," the coalition said in the letter. The United Nations' Intergovernmental Panel on Climate Change has estimated that billions of tons of carbon would need to be removed from the atmosphere annually to limit global warming to 1.5 degrees Celsius, which scientists say could prevent the most devastating effects of climate change.

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