The Human Influence

Scientists are more certain than ever that the planet is warming and that humans are to blame. That’s the finding of a new report by the Intergovernmental Panel on Climate Change (IPCC). The assessment will help inform policy makers and the public as they consider what action to take on climate change. One hundred and ten governments adopted the scientific consensus that, “It is extremely likely that human influence has been the dominant cause of observed warming since the mid-20th century.” At a news conference in Stockholm Friday, World Meteorological Organization Secretary General Michael Jarraud underscored the importance of the finding. “It should serve as another wake-up call that our activities today will have a profound impact on society, not only for us, but for many generations to come,” Jarraud said. Greenland and Antarctic ice sheets have been losing mass and glaciers continue to shrink, the report says, calling the decrease in Arctic sea ice, “unprecedented.”

 

The report notes the mean rate of sea level rise since the mid-19th century is higher than at any time in the previous 2,000 years.


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