Singular Events

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Increased water availability in moist tropics and high latitudes1

Decreasing water availability and increasing drought in mid-latitudes and semi-arid low latitudes 2

0.4 to 1.7 billion0

Increasing amphibian extinction 4

Increased coral bleaching

About 20 to 30% species at increasingly high risk of extinction 4

Mqjor extinctions around the globe 4

Most corals bleached6

Increasing species range shifts and wildfire risk7

Crop productivity

Low latitudes Decreases for some cereals

Increases for some cereals9 Mid to high latitudes

Widespread coral mortalltyb

Terrestrial biosphere tends toward a net carbon source, as:8

-15% -40% of ecosystems affected

All cereals decrease9

5 in some regions9

Increased damage from floods and storms

Additional. . coastal flooding at risk of year

Oto 3 million12

Increasing burden from malnutrition, dlarrhoeal, cardlo-resplratoiy and Infectious

Increased morbidity and mortality from heatwaves, floods and droughts 14

Changed distribution of some disease vectors15 Substantial burden on health services

Local retreat of ice in Greenland and West Antarctic 17

Long term commitment to several metres of sea-level rise due to ice sheet loss17

Leading to reconfiguration of coastlines world wide and

Inundation of low-lying areas18

Ecosystem changes due to weakening of the meridional overturning clrculatloi

Global mean annual temperature change relative to 1980-1999 (°C) Table TS.3. Examples of global impacts projected for changes in climate (and sea level and atmospheric CO2 where relevant) associated with different amounts of increase in global average surface temperature in the 21st century [T20.8]. This is a selection of some estimates currently available. All entries are from published studies in the chapters of the Assessment. (Continues below Table TS.4.)

Global mean annual temperature change relative to 1980-1999 (°C) 12 3 4

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