Equilibrium climate sensitivity estimates are shrinking

Graph shows ECS instrumental estimates between 2012 and 2018 and there seems to be a downward trend over the past 6-7 years.

https://preview.redd.it/kn6fyysx2fe51.png?width=817&format=png&auto=webp&s=1d8cee385849fed55d94bc6558b46df9eff54891