In climate fight, carbon removal is still a risky path
Assuming that the deployment of carbon removal technology will outpace emissions and conquer global climate change is a poor substitute for taking action now, say researchers.
With the current pace of renewable energy deployment and emissions reductions efforts, the world is unlikely to achieve the Paris Climate Agreement’s goal of limiting global warming to 2 degrees Celsius above pre-industrial levels. This trend puts in doubt efforts to keep climate change damages from sea level rise, heat waves, drought, and flooding in check. Removing carbon dioxide from the atmosphere, also known as “negative emissions,” has been thought of as a potential method of fighting climate change.
In their new perspective published in the journal Science, however, researchers from Stanford University explain the risks of assuming carbon removal technologies can be deployed at a massive scale relatively quickly with low costs and limited side effects—with the future of the planet at stake.