DISEASE - SHORT ELS Flashcards
How do changes to the water cycle affect the prevalence & spread of Disease
1.PRECIPITATION / VECTOR DISEASE
Flooding –> standing water –> breeding ground
eg Mosquito Vectors of Malaria
Drought –>reduces FLOW of water–> stagnates
Eg MAlaria
- DROUGHTS / WATER-BORNE
Increases stagnation –> waterborne disease
Decreased water for washing/hygiene - SEA LEVEL RISE
–> Inland FLOODING-
–> stagnation god for water & vector borne disease - QUALITY OF WATER
Tectonic disasters eg Tsunami–> water contamination
Eg salt water contamination –> kidney disease - HIGHER TEMP–> INCREASE IN PATHOGENS
Bacteria thrive in hot humid conditions.
Increase rate of evapotranspiration –> high humidity - ALTERED HABITATS
Flooding & drought
–> Destruction of medicinal palnts
eg Alaskan Yew for cancer
–> movement of animals
Affects zoonotic diseases, brings animals in close contact
7.HUMAN ACTIVITIES
Eg Urbanisiation/ Industry/Dams–> changes to flow rates
–> Disease & landscape changes
- EXTREME WEATHER EVENTS
Destroy habitats and change rates of flow and volume of water stores
How do changes to the carbon cycles affect the prevalence & spread of disease.
Carbon Cycle
Inputs/outputs, stores, processes
Disease
Communicable/non-communicable
Geography
- CC CHANGES–> CLIMATE CHANGE
Change to Habitats of vectors/change/extend
Eg Dengue Fever, Malaria
Change to Precipitation levels
–> Stagnant water/reduced flow
Change in Vegetation Growth
Eg Increased veg–> Increase tics–> lyme disease
Change in Precipitation Patterns
Eg Reduced rainfalll–> stagnant–> mosquitos
Change in Extreme Weather Events
More often–> flooding–> cholera & diorrheal disease
Eg Bangladesh
Change in food systems
Destroys crops–> Malnutrition
Changes in mental Health
heatwaves, land loss, famine
- INCREASE IN CARBON EMISSIONS (INPUTS) can lead to increased atmospheric carbon
Air Pollution
Eg India & Cancer (1.25 million deaths) - AFFECTS MIGRATION PATTERNS
Affecting spread & transmission of disease
Eg Dengue Fever
