The following formula estimates the number of temperature related deaths caused by the emissions of one additional metric ton of carbon dioxide.

(SCC-Co2 x 49)100 ÷ 4434 = Total loss of life.

To break it down, Every 4,434 metric tons of CO2 added to the atmosphere = 1 loss of life. This means we can now calculate the projected mortality rate/ lives lost of each company based on publicly available data. The following are estimates for each company’s SCC (mortality damages):

BHP:
Total Emissions Scope 1, 2 & 3 2016 – 2023
705,473,560 tonnes CO2 x 0.49 / 4434 = 77,961 lives lost.

Chevron:
Total Emissions Scope 1, 2 & 3 2016 – 2023
1,556,932,685 tonnes CO2 x 0.49 / 4434 = 172,056 lives lost.

Glencore:
Total Emissions Scope 1 ,2 & 3 2016 – 2023
877,842,570 tonnes CO2 x 0.49 / 4434 = 97,010 lives lost.

Inpex:
Total Emissions Scope 1 ,2 & 3 2017 – 2023
665,072,462 tonnes CO2 x 0.49 / 4434 = 73,496 lives lost.

Woodside:
Total Emissions Scope 1 ,2 & 3 2016 – 2023
1,348,877,321 tonnes CO2 x 0.49 / 4434 = 149,064 lives lost.

Find out more about the mortality cost of carbon at nature.com – The mortality of cost of carbon.