类别 全部 - security - drought - migration - health

作者:Lily Hornik-Tran 2 年以前

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Climate Change Risks

The challenges posed by climate change are multifaceted, affecting various aspects of human life and the environment. Droughts are a significant concern, threatening water and food security.

Climate Change Risks

Climate Change Risks

Drought

Due to global demand, agriculture has to produce almost 50% more food by 2050.
Heat stress and Crop duration reduction
food hoarding
Droughts
Crop yield reduction

Crop price spike

Food riots

This has happened in 07-08 and 2010-11

By 2050 40% of crops will be exposed to severe droughts

Water security

Hydrological Droughts
By 2040, 152 million people in Africa will be affected by drought
By 2040, 230 million people in East and South Asia will be affected by drought
River/Coastal Flooding
South Asia’s river flooding will affect anywhere from 10-100 million people.
Around 20-30 million people are estimated to be affected by river and coastal flooding by 2100 in Southeast and South Asia

Cascading systemic risks

Energy Security
Migration pressures
Political discontent
Each year during 2008-2020, an average of 21.8 million people has been displaced by weather related globally
Poverty
Food security
Economic and trade disruption
National and international security
Climate hazards and direct impacts
Vulnerabilities mediating cascading risks
Lack of social safety nets and social cohesion
Fragility of the food system
Health Problems
Lack of sufficient sanitary and medical facilities
Increase prevalence of emerging infectious diseases and vector-borne diseases

Direct climate impacts

Heat waves
2 billion people will be affected by major heatwave
4.2 billion people are likely to experience heatwave by 2050 in Asia (90% population)

Emissions trajectory and risks

Researchers model trajectories of C02 emissions
On the RCP4.5 path, the average temp rise about 2.7 degrees