IB Environmental systems and societies Topic 4.2A Water Security Revision Notes (SL/HL)

IB Environmental systems and societies Topic 4.2A Water Security Revision Notes (SL/HL) | RevisionDojo

Written by official IB examiners

Definition

Water security

Water security is the availability of an adequate quantity and quality of water to meet the needs of people and ecosystems.

Water security: enough clean water, reliably reaching everyone

Water security combines quantity (enough water), quality (safe and clean), and accessibility (affordable, reliable delivery).
It also means managing water-related risks like floods, droughts, and pollution events.
It means using freshwater sustainably, without leaving future generations short.

The five components of water security

Availability: enough steady freshwater from surface water and groundwater.
Quality: water free from pollutants, pathogens, and harmful substances.
Access: the physical and financial ability to obtain and use water reliably.
Resilience: the capacity to cope with droughts, floods, and seasonal changes.
Governance: strong institutions to manage, share, and protect water supplies.

Note

Access also covers sanitation and hygiene services (WASH), which are vital for public health and disease prevention.

Why water security matters: it underpins health, food, and stability

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Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

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Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

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Definition

Water security

Water security is the availability of an adequate quantity and quality of water to meet the needs of people and ecosystems.

Water security: enough clean water, reliably reaching everyone

Water security combines quantity (enough water), quality (safe and clean), and accessibility (affordable, reliable delivery).
It also means managing water-related risks like floods, droughts, and pollution events.
It means using freshwater sustainably, without leaving future generations short.

The five components of water security

Availability: enough steady freshwater from surface water and groundwater.
Quality: water free from pollutants, pathogens, and harmful substances.
Access: the physical and financial ability to obtain and use water reliably.
Resilience: the capacity to cope with droughts, floods, and seasonal changes.
Governance: strong institutions to manage, share, and protect water supplies.

Note

Access also covers sanitation and hygiene services (WASH), which are vital for public health and disease prevention.

Why water security matters: it underpins health, food, and stability

Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

Topic 1: Foundation 3 subtopics

Topic 2: Ecology5 subtopics

Topic 3: Conservation and biodiversity3 subtopics

Topic 4: Water4 subtopics

Topic 5: Land2 subtopics

Topic 6: Atmosphere and climate change4 subtopics

Topic 7: Natural resources3 subtopics

Topic 8: Human populations and urban systems3 subtopics

HL lenses 3 subtopics

IB Environmental systems and societies 4.2A Water Security Notes

Topic 1: Foundation 3 subtopics

Topic 2: Ecology5 subtopics

Topic 3: Conservation and biodiversity3 subtopics

Topic 4: Water4 subtopics

Topic 5: Land2 subtopics

Topic 6: Atmosphere and climate change4 subtopics

Topic 7: Natural resources3 subtopics

Topic 8: Human populations and urban systems3 subtopics

HL lenses 3 subtopics

Water security: enough clean water, reliably reaching everyone

The five components of water security

Why water security matters: it underpins health, food, and stability

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

Water security: enough clean water, reliably reaching everyone

The five components of water security

Why water security matters: it underpins health, food, and stability

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account