Climate models are some of our best tools for understanding future changes, especially how likely it is that we accomplish the goal of the Paris Agreement to keep warming to well below 2.0°C. Recent updates to radiative forcing estimates from greenhouse gases and tropospheric aerosols result in an increase in projected warming, substantially reducing the likelihood that we will meet the goals of the Paris Agreement.
Climate models are some of our best tools for understanding future changes, especially how...
We show that recent assessed updates to the future abundance and radiative forcing (RF) of greenhouse gases (GHGs) and tropospheric aerosols result in a 0.2 to 0.4 ⁰C rise in global mean surface temperature by the end of the century, relative to prior projections. For society to have confidence in achieving the 2 ⁰C warming limit of the Paris Agreement, the RF due to GHGs and aerosols must be placed close to the primary 2.6 W m−2 Shared Socioeconomic Pathway scenario (SSP1−2.6) over the coming decades.
We show that recent assessed updates to the future abundance and radiative forcing (RF) of...