New Delhi (PTI): Warning that the problem of climate change would be acute in the 21st century, eminent environmentalist R K Pachauri on Saturday asked the IITs to undertake research to overcome the dangers.

Speaking at the 39th convocation of IIT Delhi, Pachauri, who heads the Intergovernmental Panel (IPCC) on Climate Change, which won the Nobel peace prize last year, said the IPCC report has found that warming of climate system is unequivocal.