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On average, the models show a slight shift towards more winter and less summer precipitation. One consistent model result is a significant decrease in precipitation in March, April and May,

which may indicate an earlier transition to spring. This agrees with the IPCC finding that snow season length and depth are very likely to decrease for most parts of North America.

SRES A2 16Mod 2080-2099 ANN Temperature

SRES B1 16Mod 2080-2099 ANN Temp

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Figure 9: Multi-model mean annual temperature increase at end of the century under high emissions. Source: Michael Wehner, Lawrence Livermore National Laboratory.

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SRES B2 16Mod 2080-2099 ANN Precipitation

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Figure 10: Multi-model mean annual temperature increase at the end of century under low emissions. Source: Michael Wehner, Lawrence Livermore National Laboratory.

SRES A2 16Mod 2080-2099 ANN Precipitation

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Figure 11: Multi-model mean change in annual precipitation at end of century under high emissions. Blue indicates increasing precipitation while tans and reds indicate decreasing precipitation. Source: Michael Wehner, Lawrence Livermore National Laboratory.

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Figure 12: Multi-model mean change in annual precipitation at end of century under low emissions. Source: Michael Wehner, Lawrence Livermore National Laboratory.

Citizen’s Guide to Colorado Climate Change

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Citizen's Guide to Colorado Climate Change  

This guide presents a range of contemporary climate change information presented by Colorado experts.

Citizen's Guide to Colorado Climate Change  

This guide presents a range of contemporary climate change information presented by Colorado experts.