Official AMS Statement on Climate Change

The American Meteorological Society, the main professional organization of meteorologists, has updated their official position on climate change.

The concluding section begins:

There is unequivocal evidence that Earth’s lower atmosphere, ocean, and land surface are warming; sea level is rising; and snow cover, mountain glaciers, and Arctic sea ice are shrinking. The dominant cause of the warming since the 1950s is human activities. This scientific finding is based on a large and persuasive body of research. The observed warming will be irreversible for many years into the future, and even larger temperature increases will occur as greenhouse gases continue to accumulate in the atmosphere. Avoiding this future warming will require a large and rapid reduction in global greenhouse gas emissions. The ongoing warming will increase risks and stresses to human societies, economies, ecosystems, and wildlife through the 21st century and beyond, making it imperative that society respond to a changing climate.

They also say that that “warming of the climate system now is unequivocal, according to many different kinds of evidence” and that “Future warming of the climate is inevitable for many years due to the greenhouse gases already added to the atmosphere and the heat that has been taken up by the oceans”.


  1. "Prudence dictates extreme care in accounting for our relationship with the only planet known to be capable of sustaining human life."

    The final sentence is perhaps the most alarming of the whole statement, acknowledging implicitly that what is at stake in our response to climate change is nothing less than the ability of planet to sustain human life.

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