Introduction to Carbon Dioxide Removal

Carbon Dioxide Removal (CDR) approaches – also known as negative emissions technologies, carbon drawdown, or greenhouse gas removal – aim to address the primary driver of climate change by removing carbon dioxide from the atmosphere, and ensuring its long-term storage.

The IPCC in its 2018 special report on global warming of 1.5°C said: “all pathways to limit global warming to 1.5°C (with limited or no overshoot of the temperature goal) project the use of carbon dioxide removal (CDR) on the order of 100–1000 GtCO2 over the 21st century.” If deployed at this enormous scale, CDR would slow the rate of global warming and ocean acidification.​

Removing carbon dioxide is not a new idea: the global community recognised in 1992 that mitigation included both emission reductions and removals, when it adopted the United Nations Framework Convention on Climate Change (UNFCCC).

What is new (due to insufficient action so far) is the scale, nature and urgency of CDR now being considered, and what this means for its effective governance. For temperature rise to stay below 1.5°C, emission reductions and carbon dioxide removal need to balance out to net zero within 30 years, which is a huge undertaking. Most of the approaches being considered are not yet available at anything near the necessary scale, at a price society has been willing to pay.


Basic Information

What do CDR approaches
look like?
What governance
is needed for CDR?
What are some of the
big questions about CDR?

Learning more about Carbon Dioxide Removal

C2G has put together a range of products, in multiple languages, to help policymakers, their advisors, and society at large to learn more about Carbon Dioxide Removal. Feel free to explore, and if you have further questions please get in touch with us via our contact form.​


Dig deeper

Want to know more about the evidence?
How prepared are governments for CDR governance?
Want to know more about C2G’s plans to catalyse governance?
Interested in more infographics, videos and blogs?
Explore our Carbon Dioxide Removal page
Does CDR include nature-based approaches?
Explore our Nature-Based Approaches page
What CDR approaches might be deployed at sea?
Explore our Marine Environment page

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