UN Secretary-General Ban Ki-moon has asked the world's science academies to review work of the Intergovernmental Panel on Climate Change (IPCC).
Work will be co-ordinated by the Inter-Academy Council, which brings together bodies such as the UK's Royal Society.
The IPCC has been under pressure over small errors in its last major assessment of climate science in 2007.
Mr Ban said the overall concept of man-made climate change was robust, and action to curb emissions badly needed.
The Inter-Academy Council will convene a panel of experts to conduct the review.