President Barack Obama, John Holdren, Director of Office of Science and Technology Policy, Assistant to the President for Science and Technology - The White House said that heat wave deaths in the U.S. could worsen by 2030 due to climate change, killing over 10,000 in a single summer. John Holdren, Obama's senior science adviser, said steps the world agreed to in Paris last year to curb emissions through 2030 can help fight the risks to health. "We will need a big encore after 2030 ... in order to avoid the bulk of the worst impacts described in this report," he said.
