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GEO 702 Lecture 02 Hazard & Risk Date

This document defines hazards as elements that could cause problems, while risk is the likelihood of something happening due to a hazard. It discusses the health risks of pesticide use, including possible links to cancer, birth defects, and neurological problems. It also notes the large present and future healthcare costs of air pollution-related illnesses. The document ranks Canada's climate change performance and suggests Canadians will need to reduce greenhouse gas emissions while climate change could reduce deaths.

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Edward Xavier
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52 views3 pages

GEO 702 Lecture 02 Hazard & Risk Date

This document defines hazards as elements that could cause problems, while risk is the likelihood of something happening due to a hazard. It discusses the health risks of pesticide use, including possible links to cancer, birth defects, and neurological problems. It also notes the large present and future healthcare costs of air pollution-related illnesses. The document ranks Canada's climate change performance and suggests Canadians will need to reduce greenhouse gas emissions while climate change could reduce deaths.

Uploaded by

Edward Xavier
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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GEO 702

_____________

LECTURE

02 HAZARD & RISK

DATE

DEFINITIONS

HAZARD
- Is an element, something that could be a problem
(stairs/pesticides)
- Everything we do exposes us to hazards
RISK
- Likelihood of something happening on/in a hazard
(likelihood of injury)

POSSIBLE
PESTICIDE LINKS
-cancer
-low birth
weight/birth
defects
-child development
-neurological
-hormone/sperm
problems
HEALTH CARE
COSTS FACTORS

Hazard: - how much substance is needed to kill/harm


subject
Risk: - how is it used?
- How often is it used?
- How much of it is used?
Benefits: - more food
- Better looking food
- Less loss to producers, cheaper for customers

PRESENT VS.
FUTURE COSTS

$8 billion a year for air pollution related illness &


death
Total loss by 2031 -> 250 billion

FUTURE POPULATION RICHER BUT?


-do we spend now to prevent?
-do we spend in the future to correct?
-elementary principle is you should not do something for
your own benefit if it harms another person

CANADIAN
RANKING CLIMATE
CHANGE
PERFORMANCE

-Canadians will have to reduce emissions of greenhouse


gases
- climate change will reduce deaths

COMMENTS WHY?
-if rainfall changes
pattern it can
affect food
production

-geophysical events (earthquakes)


-meteorological events (tropical storms)
-hydrological events (floods)
-climatological events (draughts)

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