The Intergovernmental Panel on Climate Change, which consists of thousands of climatologist, has given predictions of extreme weather events due to gl

Phenomenon and direction of trend	Likelihood of future trends based on projections for 21st century using SRES scenarios
Over most land areas, warmer and fewer cold days and nights, warmer and more frequent hot days and night	Virtually certain
Warm spells/heat waves. Frequency increases over most land areas	Very likely
Heavy precipitation events. Frequency increases over most areas	Very likely
Area affected by drought increases	Likely
Intense tropical cyclone activity increases	Likely
Increased incidence of extreme high sea level (excludes tsunamis)	Likely