1. Rising temperatures
Global average temperatures could rise by as much as 7 C, or 12.6 F, by 2100. So far the average has risen by about 1 C.
2. Even higher regional temperature increases
Regional temperatures could increase much more than the global average in places like North Africa, the Mediterranean, and the Middle East. Summer temperatures could increase by 9 C, or about 16 F, in some places.
3. Rising heat in the US
Even in the United States, where temperatures are expected to rise less than the global projected increase, average temperatures could rise by as much as 12 F by the end of the 21st century.
4. A rise in hurricane and storm activity
While the jury is still out on whether global warming has significantly contributed to an increase in the frequency and strength of hurricanes affecting the United States, scientists project global warming is likely to cause a substantial increase in the severity of these events in the future.
5. Drastic changes in weather patterns
Strong El Nino events and erratic monsoon seasons will severely affect access to water and increase water insecurity in Asia and other parts of the Pacific.