Nope. The article poses it as a question not a statement in the title which should be a warning . In fact you can find this line further down : "In the very long run – over many hundreds to thousands of years – carbon sinks would become dominant and global temperatures would eventually fall – as long as anthropogenic CO2 emissions remained at net-zero." I guess it depends on what the definition of "immediately" is. Also "The projected future temperature change 50 years after zero emissions" shows the desired decline. 50 years is 5 generations. That is NOT immediate. Of course the question is moot since NO ONE believes we will get to net zero anytime soon let alone in 2050 or let alone magicaly, suddenly stop GHG emissions. Foolish hopism is very destructive.