0% emissions would be impossible because animals produce CO2 as a waste product of breathing. whoever this guy is is extremely stupid. also animals produce methane when farting

John Kerry, he's had a sad career. Lost to President Bush in 2004. Took Hillary Clinton's job as Secretary of State in 2012 working for Obama. Now, the "Climate Czar" for Sleepy Joe.

And he had four Purple Hearts in Vietnam. One of the first things that he'll tell anyone upon meeting them.

if you really want to know, the point is that reducing emissions will not immediately lower the levels of CO2 in the atmosphere, but it's much better than continuing to crank it out and make things worse than they already are. the biosphere needs time to reabsorb the excess that's already there.