Imperial College of London is downgrading the potential of carbon sequestration

A study by Imperial College London has significantly revised downwards the potential for carbon sequestration. The published study claims that the potential for storing CO2 in geological strata is only 1,500 billion tonnes, whereas the consensus in scientific circles has until now been that the potential is 40,000 billion tonnes. According to Imperial College, the majority of sites do not offer the required level of safety, with the risk of leakage of stored CO2 deemed too great. Until now, the IPCC experts were expecting carbon sequestration to contribute 8,700 billion tonnes to limiting the rise in average temperature to 1.5 degrees Celsius. The Imperial College study suggests that 75% of the expected contribution from sequestration would not meet the expected safety level.