Carbon  dioxide is a major greenhouse gas that’s  driving climate change, so projects are underways to remove it from the atmosphere.


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Recently I talked about Drax who just kick started the world’s largest carbon capture project in the UK, and now an ambitious startup looking to eat into the world’s carbon emissions has just taken its biggest bite yet after they flicked the switch on the what so far is the world’s largest Direct Air Capture (DAC) and CO2 storage plant.


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Climeworks latest facility is designed to suck CO2 out of the air and lock it away permanently underground thanks to a pioneering mineralization process, and has a novel modular design which will make it a lot easier for the startup to scale the plant up and capture even more CO2.

Shifting away from fossil fuel use and generating less CO2 in the first place is the key to preventing global temperatures from rising 1.5 ºC (2.7 °F) above pre-industrial levels. However, there are a growing number of technologies emerging that may help us remove the CO2 that’s already in the Earth’s atmosphere – and which could play a part in helping us avoid dangerous levels of global warming.


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Among those is DAC, which sits apart from carbon sequestration technologies that pull CO2 directly from power plants, and instead sucks it straight out of the air. Climeworks has been working at the forefront of this field since they were founded in 2009, its system using huge fans to draw ambient air through a filter that selectively captures the CO2 which can then be used in carbonated beverages, or in vertical farms to help grow vegetables bigger and faster.


The plant in Iceland


Traditionally, storing CO2 in underground reservoirs has carried the risk of leaks, but in 2016 a separate group of scientists working on the CarbFix project made a game-changing breakthrough. The researchers had been investigating how reactions between the gas and rocky underground materials can turn CO2 into solid minerals, a natural process that takes hundreds or even thousands of years.


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This led to the discovery of a technique that significantly fast-tracks this process, shortening the time it takes to mineralize CO2 to less than two years. This drew the attention of Climeworks, which teamed up with CarbFix on a pilot project at ON Power’s Hellisheidi geothermal power plant in Iceland in 2017. Here, the startup’s DAC system was used to capture and safely stow away around 12.5 tons of CO2 over three months, turning it into the world’s first negative-emissions power plant.

The Hellisheidi geothermal power plant is again home to the company’s latest DAC facility, which is called Orca. Work began here in May 2020 relying on a modular construction method where the technology is packed inside stackable units. These units use half the steel of previous designs and also capture CO2 more efficiently, and sitting adjacent to the power plant, are powered entirely by renewable energy.


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Orca began operations this week and, according to Climeworks, will harvest 4,000 tons of CO2 from the air each year. As it stands this is a drop in the ocean compared to the more than 30 gigatons, or 30 billion tons, of CO2 humans pump into the air every year, but is a marked improvement on what the company was capable of capturing just a few years ago. As it expands, the company plans to scale up its removal capacity to capture millions of tons of CO2 by the second part of this decade.

”Orca, as a milestone in the direct air capture industry, has provided a scalable, flexible and replicable blueprint for Climeworks’ future expansion,” says Climeworks co-founder Jan Wurzbacher. “With this success, we are prepared to rapidly ramp up our capacity in the next years. Achieving global net-zero emissions is still a long way to go, but with Orca, we believe that Climeworks has taken one significant step closer to achieving that goal.”

Source: Climeworks

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Matthew Griffin

Matthew Griffin, described as “The Adviser behind the Advisers” and a “Young Kurzweil,” is the founder and CEO of the World Futures Forum and the 311 Institute, a global Futures and Deep Futures consultancy working between the dates of 2020 to 2070, and is an award winning futurist, and author of “Codex of the Future” series. Regularly featured in the global media, including AP, BBC, Bloomberg, CNBC, Discovery, RT, Viacom, and WIRED, Matthew’s ability to identify, track, and explain the impacts of hundreds of revolutionary emerging technologies on global culture, industry and society, is unparalleled. Recognised for the past six years as one of the world’s foremost futurists, innovation and strategy experts Matthew is an international speaker who helps governments, investors, multi-nationals and regulators around the world envision, build and lead an inclusive, sustainable future. A rare talent Matthew’s recent work includes mentoring Lunar XPrize teams, re-envisioning global education and training with the G20, and helping the world’s largest organisations envision and ideate the future of their products and services, industries, and countries. Matthew's clients include three Prime Ministers and several governments, including the G7, Accenture, Aon, Bain & Co, BCG, Credit Suisse, Dell EMC, Dentons, Deloitte, E&Y, GEMS, Huawei, JPMorgan Chase, KPMG, Lego, McKinsey, PWC, Qualcomm, SAP, Samsung, Sopra Steria, T-Mobile, and many more.

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