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Title edit
Global Warming: Early Warning Signs
Description edit
About the map
Global temperature in 1998 was the hottest in the historical record, and the temperature increase over the 20th century is likely to be the highest of the past millennium. Global average temperatures have warmed about one degree Fahrenheit (0.6�C) since 1900. The ten warmest years on record have occurred since 1987, seven of them since 1994.
Fingerprints. Some of the events are direct manifestations of a widespread and long-term trend toward warmer global temperatures, as already documented and projected to continue by models of a changing climate. These "fingerprints" of climate change are indicated with yellow icons.
Harbingers. The map also identifies events that foreshadow the types of impacts likely to become more frequent and widespread with continued warming. These "harbingers" of climate change are indicated with red icons. For these events, evidence for a direct link to long-term climate change cannot be confirmed or ruled out at this time.
Contact edit
- UNION OF CONCERNED SCIENTISTS
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- Cambridge MA
- United States 02238-9105
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- +1.6175475552
