Why HAS global warming has slowed? Scientists admit they don't know why

Why HAS global warming has slowed? Scientists admit they don't know why | Mail Online: "Scientists are struggling to explain why global warming seems to have slowed down in the last decade in a leaked draft of the UN's next big report on climate change. The intergovernmental study claims scientists are 95 per cent sure that humans are to blame for climate change, but presently they have not come up with a unified reason for why global surface temperatures have not risen as predicted in the past 15 years."