Indeed, the Land Gap Report in 2022 found that national climate pledges would collectively require 1.2 billion hectares of land. Some studies claim that there is not enough land to meet global climate pledges, which rely heavily on the carbon offset markets and nature-based solutions and restoration. We can’t just rely on Mother Nature, she is not able to capture the emissions at the same rate that they’re being pumped out and we need to help her with technological solutions.” “We only have a certain amount of land around the globe where we can grow forests and restore wetlands and we definitely should be doing that, but additionally, we need direct air capture as well. “But as we’re reducing emissions as much as possible we know that we also have to remove some carbon from the air and atmosphere. “We know what we need to do in terms of carbon reduction to stay within the targets for the Paris Agreement and we have to follow the science,” Nielsen tells edie. Speaking to edie at the Orca site, Climeworks’ spokesperson Bryndís Nielsen outlines her visions as to why DAC and CDR solutions are vital to reaching net-zero, but shouldn’t be a substitute for carbon reduction and nature-based solutions. This calculation considers the fact that the facilities are powered by renewable energy. The carbon associated with developing and operating the DAC facilities, Climeworks claims, is typically equivalent to 10% of the carbon that will be captured. When the filter is full, the collector is closed and heated to release the CO2, ready for concentration and storage by storage partner Carbfix. Inside the collector, CO2 is filtered out. Orca is based in Hellisheiði, Iceland and has a CO2 removal capacity of 4,000 tonnes per year.Ĭlimeworks’ technology works by drawing air into a collector with a fan. One of the biggest movers in this nascent market is Climeworks, which hit the headlines in September 2021, when it opened its first direct air capture and storage plant (DAC), the first step on a broader ambition to scale-up and deliver multi-megaton capacity for carbon capture in the 2030s, rising to more than a gigaton capacity by 2050.Ĭlimeworks currently operates 17 DAC plants, including one, Orca, which is operating on a commercial basis. This would see carbon dioxide removal (CDR) solutions account for the any unavailable emissions following a 90% reduction globally by 2050. The IPCC itself has stated that, by 2050, the world’s air-based carbon removal capacity should be 3-12 billion tonnes in a net-zero world. Some climate scientists have concluded that large-scale carbon capture – whether man-made or nature-based – is needed at scale to avert the worst physical impacts of climate change due to historic and continuing emissions.
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