The fate of anthropogenic emissions of CO2 and other climate drivers: should we all go vegan to address climate change?

This lecture explains why net anthropogenic CO2 emissions need to be reduced to zero to halt the rise in global temperature, putting paid to the once-popular idea of “contraction and convergence” to a “sustainable” per-capita CO2 emission rate. We’ll also discuss how other climate pollutants behave, including methane, nitrous oxide and aerosols, and why the concept of “CO2-equivalent emissions”, although deeply embedded in almost all climate policy discussions, can be misleading.