Tag Archives: Emission

Mortality Externalities of CO2-Emissions

In the Quarterly Journal of Economics (137, 4), a group of authors estimates that

the mean global increase in mortality risk due to climate change, accounting for adaptation benefits and costs, is valued at roughly 3.2% of global GDP in 2100 under a high-emissions scenario. Notably, today’s cold locations are projected to benefit, while today’s poor and hot locations have large projected damages. Finally, our central estimates indicate that the release of an additional ton of CO2 today will cause mortality-related damages of $36.6 under a high-emissions scenario, with an interquartile range accounting for both econometric and climate uncertainty of [−$7.8, $73.0].

Carbon Accounting

Carbon flow, stock and budget according to the recent Geneva Report on Climate and Debt:

  • Annual global CO2 emissions from fossil fuel and industry: 40 gigatonnes.
  • Cumulative historical emissions since 1850: 2400 gigatonnes. They are responsible for a temperature rise of 1 degree Celsius.
  • Remaining carbon budget given 1.5 degree Celsius temperature rise cap: 300 gigatonnes.