New report says 2015 was hottest year on record on Earth

Rising sea levels, changes in marine habitat, decreasing Arctic sea ice and retreating mountain glaciers over the last 50 years all signal that the planet has long surpassed a tipping point in a changing global climate.
Map showing how the sea surface temperature (SST) anomaly had moved and spread along the West Coast by March 2015. (Image provided by the NOAA/ESRL Physical Sciences Division at Boulder, Colorado)Now, a new report said 2015 was the warmest year on record for the Earth.
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