»Um bis Mitte des Jahrhunderts weltweit Netto-null-Emissionen zu erreichen, ist eine radikale Dekarbonisierung aller Wirtschaftssektoren notwendig«

102. Urgent action and support are needed to ramp up implementation of domestic mitigation measures by realizing opportunities across all sectors and systems. Urgently implementing domestic mitigation measures is key to reducing emissions and following through on ambitious pledges. There are many opportunities for implementing more ambitious mitigation measures in all sectors and systems (see para. 112 below). If fully implemented and supported, realizing such opportunities can raise ambition to sufficiently address the emissions gap and can offer substantial potential to reduce net GHG emissions by 2030.

103. Some mitigation options are more cost-effective than their high-emission alternatives, while many other mitigation options are available at relatively low cost. According to the contribution of Working Group III to the AR6, mitigation options costing USD 100 per t CO2 eq or less (with an estimated net emission reduction potential of 31–44 Gt CO2 eq) could reduce global GHG emissions by at least half of the 2019 level by 2030, and options costing less than USD 20 per t CO2 eq are estimated to comprise more than half of this potential. Large contributions with costs of less than USD 20 per t CO2 eq come from solar energy, wind energy, energy efficiency improvements in industry, reduced conversion of natural ecosystems and CH4 emission reductions (from coal mining, and oil and gas operations).

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