Is climate change really responsible for hurricane Harvey?

Well, no.  Not really. 

Big storms are a fact of life on this planet.  That isn't new.  There is a one percent probability that a 100-year storm will materialize every year, a .2 percent probability that a 500-year storm, like Harvey, will materialize every year.  

What is changing is the frequency and intensity of these storms.  A small increase in both can have dramatic consequences for the planet.  

More here in this great piece by Katharine MachMiyuki Hino in the NY Times.