CDR is removal of CO2 from the atmosphere - an essential basket of technologies for achieving UN IPCC best outcomes to mitigate climate change. This is a community for discussing advances and issues of CDR.
Climeworks’ carbon capture fails to cover its own emissions
The carbon capture company Climeworks only captures a fraction of the CO2 it promises its machines can capture. The company is failing to carbon offset the emissions resulting from its operations – which have grown rapidly in recent years.
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We are starting to have an impact. If we combine vegans and environmentalists, we may already have exceeded 20% of the human population, so our opinion begins to make a difference. Not a lot of…
27.03.2025 - In the past, intact forests absorbed 7.8 billion tonnes of CO₂ annually – about a fifth of all human emissions – but their carbon storage is increasingly at risk from climate change and human activities such as deforestation. A new study from the Potsdam Institute for Climate Impact Res...
“Climate change comes with irreversible consequences.”
UK would need forest ‘twice size of London’ to offset new airport expansion.
A forest twice the size of Greater London would need to be planted in the...
cross-posted from: https://ponder.cat/post/1442233
Reactionary Decarbonization | On Carbon Capture and Techno-Utopianism
Michael Levien challenges left arguments for CCS by pointing to its ecological and human costs. Why would the left support the fossil fuel industry?
cross-posted from: https://slrpnk.net/post/17553386
Boston MA (SPX) Nov 21, 2024 - In 2015, 195 nations plus the European Union signed the Paris Agreement and pledged to undertake plans designed to limit the global temperature increase to 1.5 degrees Celsius. Yet in 2023, the worl
- Challenge 1: Scaling up
- Challenge 2: Energy requirement
- Challenge 3: Siting
- Challenge 4: Cost
the world would need to generate billions of tonnes of CO2 credits at an affordable price. That prospect doesn't look likely. The largest DAC plant in operation today removes just 4,000 tonnes of CO2 per year, and the price to buy the company's carbon-removal credits on the market today is $1,500 per tonne.
The researchers recognize that there is room for energy efficiency improvements in the future, but DAC units will always be subject to higher work requirements than CCS applied to power plant or industrial flue gases, and there is not a clear pathway to reducing work requirements much below the levels of current DAC technologies.
"Given the high stakes of climate change, it is foolhardy to rely on DAC to be the hero that comes to our rescue."
North Dakota landowners bring challenge of CO2 storage law to state Supreme Court
The Northwest Landowners Association, the North Dakota Farm Bureau and others argue that state laws regulating the underground storage of carbon dioxide are unconstitutional.
“This is really just a made-up work for taking property,” the Northwest Landowners said in a news release Thursday.
Berkeley chemists have created a reusable material that pulls carbon dioxide from the air and holds onto it until it can be stored.
Citizens in Decatur, Illinois, are alarmed to hear there were two leaks in the CCS plant run by Archer-Daniel-Midlands.
Why CO2 removal is not equal and opposite to reducing emissions - Carbon Brief
An assumption that is commonly made when balancing a CO2 emission with a CO2 removal is that “one tonne in equals one tonne out” – that is, that the behaviour of the climate system in response to emissions and removals is “symmetrical”.
Peatbogs Can Help Save the Planet 🌍
Since peat bogs collect and store large amounts of carbon, they are what is known as a “carbon sink.” So, one way to help the planet would be to protect these spaces, but unfortunately peat, and often the land, is valuable.
"Worldwide, the remaining area of near natural peatland (over 3 million km2) sequesters 0.37 gigatonnes of CO2 a year. Peat soils contain more than 600 gigatonnes of carbon which represents up to 44% of all soil carbon, and exceeds the carbon stored in all other vegetation types including the world’s forests.“ [IUCN](https://www.iucn.org/reso
Startup is Building the World's Largest Ocean-Based Carbon Plant - and It's Scalable
In Singapore, a new plant will turn CO2 from seawater and air into the same material as seashells, in a process that will also produce “green” hydrogen
An anonymous reader shared this report from CNN:
On a slice of the ocean front in west Singapore, a startup is building a plant to turn carbon dioxide from air and seawater into the same material as seashells, in a process that will also produce "green" hydrogen — a much-hyped clean fuel.
The cluster of low-slung buildings starting to take shape in Tuas will become the "world's largest" ocean-based carbon dioxide removal plant when completed later this year, according to Equatic, the startup behind it that was spun out of the University of California at Los Angeles. The idea is that the plant will pull water from the ocean, zap it with an electric current and run air through it to produce a series of chemical reactions to trap and store carbon dioxide as minerals, which can b
Method-neutral carbon removal certification needed
📢📢📢 OpenAir joins 350+ companies and organizations from across the CDR sector to call for a method-neutral EU #CRCF 🇪🇺🇪🇺🇪🇺 docs.google.com/document/d/1...
The EU is promising storage will eventually be available — but manufacturers in Europe’s poorer regions are worried it won’t be within reach.
quite a lot of captured CO2 can go into concrete. Maybe a cement (powder) producer is not able to tap into that method directly, but policy shifts will open it up. There are already several US states with low-embodied-carbon concrete laws creating markets for this purpose.
Deep sea carbon sequestration with seaweed?
The National Oceanography Centre is an independent self-governing organisation – a charitable company limited by guarantee. NOC is funded by UK Research and Innovation to work on National Capability programmes and manages on its behalf the National Marine Equipment Pool (Europe’s largest fleet of au...
Researchers will conduct tests in the Six Rivers National Forest, treating each test site with a unique biochar mix.
Researchers will conduct tests in the Six Rivers National Forest, treating each test site with a unique biochar mix that’s seeded with a native, pollinator-friendly plant mix to compare growth between test sites.
They’ll measure changes in vegetation productivity, diversity, native species composition, soil carbon, nutrients, metals, bulk density, seasonal water availability, and microbial community composition over a five-year period.