Global climate change and pollution from the use of fossil fuels killed nearly 5 million people around the world in 2010, according to a report released earlier this year by climate change advocacy group DARA. By 2030, this figure will rise to nearly 6 million deaths, the group’s second annual climate vulnerability monitor estimates. Total global costs, which were estimated at more than $600 billion in 2010, are expected to rise to $4.35 trillion by 2030.