All sectors of the economy can and must decarbonize by mid-century with big emission reductions in the 2020s. This report by the Energy Transitions Commission describes how Carbon Dioxide Removals (CDR), alongside rapid and deep global decarbonization, can give the world a 50% chance of limiting global warming to 1.5°C.
But even given the fastest feasible path of emissions reductions, the world will need at least 70 to 220 Gt of carbon removals between now and 2050 to limit cumulative net emissions. No single CDR solution can be deployed in significant enough volumes to deliver the emissions removals required. Therefore, a portfolio approach is required, with solutions playing vital and complementary roles.