Global climate change, often seen as a process stretching over thousands of years, could in fact occur abruptly and unexpectedly - quickly pushing up temperatures by as much as 10 degrees Celsius (18
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/scientists-see-threat-abrupt-world-climate-change
[2] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change