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2050's

Low emissions scenario

The wider range is from the lowest to highest value for all emissions scenarios and three (10, 50, and 90%) probability levels for each 30-year time period.

  • Under low emissions, the central estimate of increase in winter mean temperature is 1.8ºC; it is very unlikely to be less than 0.9ºC and is very unlikely to be more than 2.9ºC. A wider range of uncertainty is from 0.9ºC to 3.5ºC.
  • Under low emissions, the central estimate of increase in summer mean temperature is 2.3ºC; it is very unlikely to be less than 1ºC and is very unlikely to be more than 3.9ºC. A wider range of uncertainty is from 1ºC to 4.8ºC.
  • Under low emissions, the central estimate of increase in summer mean daily maximum temperature is 3.3ºC; it is very unlikely to be less than 1.1ºC and is very unlikely to be more than 5.9ºC. A wider range of uncertainty is from 1.1ºC to 7.2ºC.
  • Under low emissions, the central estimate of increase in summer mean daily minimum temperature is 2.4ºC; it is very unlikely to be less than 1ºC and is very unlikely to be more than 4.3ºC. A wider range of uncertainty is from 1ºC to 5.3ºC.
  • Under low emissions, the central estimate of change in annual mean precipitation is 0%; it is very unlikely to be less than -4% and is very unlikely to be more than 5%. A wider range of uncertainty is from -6% to 6%.
  • Under low emissions, the central estimate of change in winter mean precipitation is 10%; it is very unlikely to be less than 1% and is very unlikely to be more than 23%. A wider range of uncertainty is from 1% to 30%.
  • Under low emissions, the central estimate of change in summer mean precipitation is -12%; it is very unlikely to be less than -33% and is very unlikely to be more than 14%. A wider range of uncertainty is from -39% to 14%.


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