CREDIT: John DeCicco, University of Michigan Energy Institute
Air travel accounts for 3% of U.S. emissions, 11% of the USA transportation sector, which this year is likely to surpass energy generation and become the most polluting sector. Last year, EPA said aviation greenhouse gases are a health hazard. Such determination is often the first step towards developing a rule under the Clean Air Act…CORSIA — short for Carbon Offsetting and Reduction Scheme for International Aviation — the industry will voluntarily (at first) offset its emissions through the purchase of credits, or the funding of still unspecified projects that reduce greenhouse gas emissions elsewhere…CORSIA applies only to international flights, which make up about 60% of aviation-related emissions, according to Associated Press. Domestic flight emissions fall under the Paris Accord, a global agreement that just passed the threshold to enter into force in early November…Important airport hubs will fall under the plan, as some 65 countries — including the United States, Mexico, the European Union, the United Arab Emirates, and Singapore — agreed to participate…Still, the system will be voluntary from 2021 to 2026. Australia watches from sidelines while good old NZ is fully committed.