Textbook Notes (378,270)
CA (167,150)
UTSC (19,206)
EESA10H3 (134)
Chapter 1

Chapter 1

2 Pages
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Department
Environmental Science
Course Code
EESA10H3
Professor
Jovan Stefanovic

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Chapter 1: Environment, Health, and Risk
- Improved water, food, sanitation = improved nutrition, cleaner fuels
- We have many global problems
o Global warming, population growth, habitat destruction, resource depletion
The Environmental Crisis
- +XPDQEHLQJVDUHFKDQJLQJWKHHDUWK¶VDWPRVSKHUHJHRVSKHUHDQGELRVSKHUH
o Between 1/3rd and 1/2 of earths surface was changed by humans
o Carbon dioxide levels increased 30% since industrial revolution
o Atmospheric nitrogen mostly caused by humanity and not by natural terrestrial
sources
o Health reproductions of amphibians are damaged by ultraviolet light
o The declining of various amphibians and animals should be a clear indication of
environmental threats to human health
- 7RGD\VHQYLURQPHQWDOGHJUDGDWLRQLVUDSLGO\DQXQSUHFHGHQWHGJOREDOFULVLV
o Caused by population growth and industrialization
- In the past 100 years...
o Manufacturing increased
o Use of fossil fuels increased
o Number of automobiles
o Production of synthetic chemicals
- In 150 years...
o We have 30% concentration of carbon dioxide
o Ozone destroying chlorofluorocarbons
- Human made emissions have led us to acid rain
Human and Ecosystem Health
- Biologists and ecologists have an idea where the human health reflects the health of a
complex ecosystem
- Some believe humans dominate nature
- Some believe that the harmful things humans do to the environment can undo itself with
the help of technology
- We avoid talking about the global change we are experiencing because it may be too
frightening or overwhelming
- 6RPHEHOLHYHZHDUHH[SHULHQFLQJJOREDOZDUPLQJ¶VHIIHFWVDVZHVSHDN
- Science has proven that the earth is warming, and GHG are part of the cause
- Political leadership have begun to seek solutions to the global issues of climate change
Health and the Environment
- New health effects are arising and could possibly be directly from climate change or
indirectly
o Prevalence of malaria has increased worldwide, but no link to climate change was
made
o Funding the science to see whether certain health effects are caused by climate
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Description
Chapter 1: Environment, Health, and Risk - Improved water, food, sanitation = improved nutrition, cleaner fuels - We have many global problems o Global warming, population growth, habitat destruction, resource depletion The Environmental Crisis - +:2,3-0L3J8,70.K,3JL3J9K00,79K8,92485K070J0485K070,3-L485K070 rd o Between 13 and 12 of earths surface was changed by humans o Carbon dioxide levels increased 30% since industrial revolution o Atmospheric nitrogen mostly caused by humanity and not by natural terrestrial sources o Health reproductions of amphibians are damaged by ultraviolet light o The declining of various amphibians and animals should be a clear indication of environmental threats to human health - %4,803;L7432039,O0J7,,9L43L87,5LO,3:3570.00390JO4-,O.7L8L8 o Caused by population growth and industrialization - In the past 100 years... o Manufacturing increased o Use of fossil fuels increased o Number of automobiles o Production of synthetic chemicals - In 150 years... o
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