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 |