From the latest report on state of world climate:
Worldwide, 2012 was among the 10 warmest years on record according to the 2012 State of the Climate report released online today by the American Meteorological Society (AMS). ...
Conditions in the Arctic were a major story of 2012, with the region experiencing unprecedented change and breaking several records. ...
... Each indicator includes thousands of measurements from multiple independent datasets.
- Warm temperature trends continue near Earth’s surface: ... The United States and Argentina had their warmest year on record...
- The Arctic continues to warm; sea ice extent reaches record low: The Arctic continued to warm at about twice the rate compared with lower latitudes. ...The temperature of permafrost, or permanently frozen land, reached record-high values in northernmost Alaska....
- Antarctica sea ice extent reaches record high...
- Sea surface temperatures increase: Four independent datasets indicate that the globally averaged sea surface temperature for 2012 was among the 11 warmest on record. ...
- Ocean heat content remains near record levels...
- Sea level reaches record high...
- Ocean salinity trends continue: Continuing a trend that began in 2004, oceans were saltier than average in areas of high evaporation...
- Tropical cyclones near average...
- Greenhouse gases climb... In spring 2012, for the first time, the atmospheric CO2 concentration exceeded 400 ppm at several Arctic observational sites.
- Cool temperature trends continue in Earth’s lower stratosphere: The average lower stratospheric temperature, about six to ten miles above the Earth’s surface, for 2012 was record to near-record cold, depending on the dataset. Increasing greenhouse gases and decline of stratospheric ozone tend to cool the stratosphere while warming the planet near-surface layers.
It's gotten to the point where even former Republican EPA heads are warning their fellow Rs to wake the fuck up. Not that it'll matter.
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