by Christopher B. Field, Vicente R. Barros, Michael D. Mastrandrea et al.
Intergovernmental Panel on Climate Change (IPCC) Working Group II, 31 March 2014
Summary for Policymakers (SPM) – 44 pp. 13.2 MB
Download full Report chapter by chapter: https://www.ipcc.ch/report/ar5/wg2/
The report says that the effects of climate change are already occurring on all continents and across the oceans. The world, in many cases, is ill-prepared for risks from a changing climate. The report also concludes that there are opportunities to respond to such risks, though the risks will be difficult to manage with high levels of warming.