Underground CO2 storage: A possible solution or a climate illusion?

Underground CO2 storage, a key component of carbon capture and storage (CCS) technology, is often seen as an essential solution to combating climate change. Given the urgency of addressing global warming, many potential methods of carbon sequestration have been thoroughly explored.

While the concept of storing CO2 underground is promising, recent research from Imperial College London points to significant limitations and challenges to scaling up the technology.

Current international scenarios for limiting global warming to less than 1.5 degrees Celsius by 2100 rely heavily on technologies that can remove CO2 from the Earth's atmosphere at an unprecedented rate.

The goal of these strategies is to eliminate 1 to 30 gigatons of CO2 per year by 2050. However, estimates of the speed of deployment of these technologies are largely speculative. (Rodielon Putol, more at earth.com)