How Big Is the Threat of Climate Change to the World Economy?

Global temperatures are rising, putting pressure on global eco systems, while over the last 50 years, 17 percent of the Amazon rain forest has been destroyed. Tech billionaires are teaming up to help reduce emissions with Mark Zuckerberg and Bill Gates launching the Breakthrough Energy Coalition. The aim is to invest billions of dollars into new ways to curb emissions and tackle climate change. But is it too little too late? China is currently the biggest CO2 producer in the world with the U.S. churning out the most CO2 emissions per person. Every year 7 million premature deaths are caused by air pollution, with major cities like Delhi and Beijing recording hazardous air pollution levels on a daily basis.