Former Maryland Governor and Democratic candidate for president Martin O'Malley explained how climate change led to the rise of ISIS to Bloomberg's Mark Halperin.





MARTIN O'MALLEY: One of the things that preceded the failure of the nation state of Syria and the rise of ISIS, was the effect of climate change and the mega-drought that affected that nation, wiped out farmers, drove people to cities, created a humanitarian crisis that created the symptoms — or rather, the conditions — of extreme poverty that has now led to the rise of ISIS and this extreme violence.



Full interview below:July 20 -- Democratic presidential candidate Martin O’Malley discusses his family roots, foreign policy, working for Gary Hart and what he’s learned on the campaign trail. He speaks on “With All Due Respect.”