Limiting global warming to 1.5 degrees Celsius above pre-industrial levels requires reaching net zero by 2050. By then, it must be possible to massively reduce the greenhouse gases emitted worldwide and compensate for unavoidable emissions, for example by "suctioning off" CO2.
The latter includes what are known as CCUS technologies. CCUS stands for "carbon capture, utilisation and storage". CO2 is extracted directly from the air or greenhouse gases are captured by industrial production processes before they escape into the atmosphere. The CO2 is then stored underground or used in industrial processes such as the production of synthetic fuels, chemicals or building materials.
Bloomberg New Energy Finance (BNEF) has evaluated all CCUS projects and calculated a global CCUS capacity of 279 megatonnes per year by 2030. In 2021, this capacity stood at 44 megatonnes. This corresponds to cumulative annual growth of 20%.