IPCC Climate Mitigation Report: “Business As Usual” Won’t Get It Done

World governments and global society need to take actions that realize cuts of 40%-70% in global greenhouse gas emissions by 2050 if global mean temperature ranges aren’t to be driven outside safe bounds and human-caused greenhouse gas emissions are not to drive climate change away from a state conducive to life as we know it, according to the third and final installment of the UN IPCC’s Fifth Climate Change Assessment Report.