Potential impacts on human activity

Water shortages

The availability of water will be affected by melting of glaciers, particularly in areas such as the Indus basin and western China, where much of the river flow comes from meltwater.

Increased temperatures

Population growth, combined with changes in river run-off (as a result of changes in rainfall patterns and increased temperatures), could mean that by 2080 significantly less water is available to approximately one billion people.

Falling agriculture and food yields

Agricultural yields are expected to decrease for all major cereal crops in all major regions of production. See more about Impacts on food security.

Rising sea levels

For many areas of the world, sea-level rise combined with the effect of storms will threaten low-lying coastal communities. There are many areas of dense population, important infrastructure and high-value agricultural land along coasts, which make coastal flooding particularly damaging. Flooding events could affect millions worldwide every year.

Human dynamics of climate change map

The Human dynamics of climate change map highlights some of the potential climate impacts we may experience by the end of the 21st century (2071-2100).

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