Columbia University Professor : Don't make the mistake of thinking Trump doesn't know about climate change. He knows. People need to understand what's going on. The american Republican Party is funded by Charles Koch and David Koch. Two of the wealthiest oil fortunes in the United States. -

Columbia University Professor Jeffrey Sachs talks about the political influences behind President Donald Trump's decision to leave the Paris climate accord. He speaks on "Bloomberg Surveillance." (Source: Bloomberg)


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