according to the federal government’s latest data — which is always two years out of date and changes retroactively every year — during the 2008-09 subprime mortgage derivative scandal, canada’s emissions dropped by 61 million tonnes or by 7.9% from 777 million tonnes in 2007 to 716 million tonnes in 2009, before they started rising again in 2010.
in the first year of the covid pandemic in 2020, canada’s emissions dropped by 66 million tonnes or by 8.8% from 752 million tonnes in 2019 to 686 million tonnes in 2020, before starting to rise again in 2021.
by comparison, without a major recession, canada’s emissions in 2022 went up by 10 million tonnes, an increase of 1.3%, from 698 million tonnes in 2021 to 708 million tonnes in 2022.
(actually that works out to an increase of 1.4%, but i’m using the government’s figures from its own announcement.)
to hit trudeau’s 2030 target of cutting annual emissions to at least 40% below 2005 levels would require a cut to 457 million tonnes annually in 2030 (60% of 2005 emissions of 761 million tonnes).
that means that based on the federal government’s latest available data, it has until 2030 to cut our current annual emissions of 708 million tonnes annually by 251 million tonnes (708-457) or by 35.5%.