Want to get more charts in your inbox every fortnight? Sign up for The Crunch here

Woodside’s North West Shelf gas project on the Burrup peninsula in Western Australia is one of the world’s largest liquified natural gas ventures.

In May the Labor government approved an extension for the project to run for an additional 40 years, from 2030 to 2070.

The extension is expected to be responsible for about 87.9m tonnes of carbon dioxide equivalent every year in the decades ahead, after the gas has been exported and burned, according to Woodside’s own numbers.

Despite the North West Shelf contributing “almost nothing” in terms of Australian tax dollars, it will be responsible for emissions greater than dozens of countries and many of the world’s biggest companies.