Alberta's emissions down slightly but still make up lion's share of Canada's greenhouse gas

Alberta's emissions totalled 270 megatonnes of carbon-dioxide equivalent in 2022, according to the latest National Inventory Report, which was released Thursday.

The declines are due largely to plummeting emissions from Alberta's electricity generation as the province continues to phase out its coal-fired power plants.

Federal Environment Minister Steven Guilbeault highlighted that as some "good news" in latest inventory report, which Canada is required to submit to the United Nations under the terms of the Paris Agreement.

A big part of that growth, he noted, was due to revisions in the way methane emissions are measured and included in the national inventory.

The methane revisions had an outsized — and retroactive — effect on Alberta's emission totals in the National Inventory Report, dating back decades.

While Alberta remains the largest contributor to Canada's greenhouse gas emissions of all the provinces, it's second on a per-capita basis.