A study published in Nature has found that the global capacity for carbon dioxide (CO2) storage may be drastically overstated, with only about 1,460 gigatons of CO2 deemed safe for underground storage. This contrasts sharply with previous estimates suggesting a capacity of up to 55,000 gigatons. The research highlights significant risks associated with carbon capture and storage (CCS), including potential water contamination and seismic activity. The authors argue that CCS should be reserved for carbon-intensive sectors where alternatives are limited, such as agriculture. They stress the importance of treating CCS as a finite resource and advocate for enhancing natural carbon sinks through reforestation and conservation. The study underscores the urgency of addressing climate change, as current projections indicate a potential rise in global temperatures that exceeds the targets set by the Paris Agreement.