Average temperatures have climbed 1.4 degrees Fahrenheit (0.8 degree Celsius) around the world since 1880, much of this in recent decades, according to NASA’s Goddard Institute for Space Studies.
TTThe rate of warming is increasing. The 20th century’s last decades were the hottest in 400 years.
Arctic ice is rapidly disappearing and the region may have its first completely ice-free summer by 2040.
Glaciers and mountain snows are rapidly melting.
Climate researchers are predicting that the Earth’s average temperature will continue to increase in the next 100 years.
If greenhouse gas emissions drop slightly, the average world temperature in 2100 could be 1 degree C warmer than in 1990.
Advances in technology could result in fossil fuels being burned more efficiently.
Fresh water supplies and local air quality will be impacted due to higher temperatures.