The Environmental Movement in the US - PowerPoint PPT Presentation

About This Presentation
Title:

The Environmental Movement in the US

Description:

The Environmental Movement in the US Increasing Awareness of Environmental Issues Extensive scientific scrutiny Intense media coverage Global communication technology – PowerPoint PPT presentation

Number of Views:73
Avg rating:3.0/5.0
Slides: 14
Provided by: RonK71
Category:

less

Transcript and Presenter's Notes

Title: The Environmental Movement in the US


1
  • The Environmental Movement in the US
  • Increasing Awareness of Environmental Issues
  • Extensive scientific scrutiny
  • Intense media coverage
  • Global communication technology
  • New Technology
  • Satellite-based sensors
  • Automated monitoring equipment
  • Powerful computers
  • Real-time communication

2
  • Recent Environmental Trends
  • Increasing concentrations of atmospheric carbon
    dioxide
  • Reduction in thickness of ozone layer over the
    poles
  • Warming of troposphere and surface waters in
    ocean rise in sea level
  • Environmental accidents at Three Mile Island,
    Chernobyl, Bhopal, Gulf of Mexico, Fukushima
    Daiichi nuclear plant, etc.
  • Declining populations of many species
  • Loss of forests and other habitats to development
  • Increasing global population of humans

3
  • No Clear Cut Issues
  • How do we know that increasing CO2
    concentrations, ozone holes and global warming
    are abnormal?
  • Accidents are inevitable the benefits of nuclear
    power and modern chemicals outweigh the costs
  • Nobody really knows how many species there are on
    earth, and population declines or extinctions are
    part of a natural process
  • Forests are far from gone, and responsible
    logging and replanting of trees makes good use of
    an important, renewable resource
  • How do we judge whether or not there are too many
    people on earth?

4
  • Hyperbole
  • Extravagant exaggeration, often to make a point
  • Why use hyperbole? Why not just stick to the
    unembellished facts?
  • Because your opponents are using it
  • Because the ends justify the means
  • Many environmentalists feel that they cant
    afford to lose, even once

5
  • Is There an Environmental Crisis?
  • YES
  • Global environmental problems are placing natural
    and human systems at risk
  • Development is displacing and destroying critical
    ecosystems (e.g. wetlands, forests)
  • Large areas of public land, including national
    forest, arent being managed sustainably
  • Fresh water sources are being consumed and
    contaminated at an alarming rate
  • Overfishing is critically depleting our most
    important commercial fisheries

6
  • Is There an Environmental Crisis?
  • YES
  • Cleanup and disposal of waste has become
    increasingly difficult
  • Indirect sources of pollution (e.g. runoff) have
    become progressively worse
  • Farmlands are suffering from a loss of soil and
    excessive use of chemicals (leads to salt
    buildup, decreasing fertility, etc.)
  • Fresh water aquifers are being consumed and
    contaminated at an alarming rate
  • Dead Sea level dropping by 1 m y-1
  • Colorado River

7
  • Is There an Environmental Crisis?
  • NO
  • Humans are living longer and healthier lives than
    ever
  • Manufacturing processes of all kinds are more
    efficient and less wasteful than before
  • Air and water quality are good and improving
  • Costs of goods and services are at all-time lows
  • Estimates of species extinction rates and climate
    change are overstated and unfounded
  • The earth is rich in resources with many still
    undiscovered

8
  • Criteria for Crisis
  • Overpopulation
  • PROBLEM
  • From beginning of human species to end of World
    War II gt10,000 generations to reach a world
    population of a little more than 2 billion people
  • Past 67 years global population has gone from
    just over 2 billion to an estimated 7.04 billion,
    and in another 38 years its projected to exceed
    9 billion!
  • Global population currently increasing at a rate
    of 8900 people per hour!

PopClock
9
  • Criteria for Crisis
  • Overpopulation
  • PROBLEM
  • Worlds developed nations contain lt25 of global
    population but use more than 75 of worlds raw
    material consumption annually
  • Over their lifetime, an American child born today
    will have more than 30 times the environmental
    impact of a child born in India

10
  • Criteria for Crisis
  • Overpopulation
  • NO PROBLEM
  • On average, people are living longer and eating
    better than ever (Simon, Lomborg)
  • A smaller percentage of people is dying from
    famine than ever before
  • Main problem isnt overpopulation, its limited
    access to resources
  • Prices of food and commodities are lower now than
    ever before, indicating greater resource
    availability, not scarcity

11
I US, UK, Canada, Aus, NZ
II Japan
III France, Germany, Netherlands, Scandinavia
IV Rest of W. Europe, E. Europe, Latin America, Former Soviet Union
V Asia (except Japan), Africa
http//minneapolisfed.org/pubs/region/04-05/figure
3.cfm
12
  • Criteria for Crisis
  • Overpopulation
  • NO PROBLEM
  • Long-term increases in population lead to
    advances in technology that result (in the long
    run) in lower prices (Simon, Lomborg)
  • People create resources
  • Population Increase ? Increased Demand ? Resource
    Shortage ? Price Increase ? Entrepreneurism and
    Technological Innovation ? Increased Resource
    Availability ? Price Decrease
  • The Ultimate Resource

13
Table 21.2Resource Prices Indexed to Wages, 1950-90(Relative to 1990 Baseline) Table 21.2Resource Prices Indexed to Wages, 1950-90(Relative to 1990 Baseline) Table 21.2Resource Prices Indexed to Wages, 1950-90(Relative to 1990 Baseline) Table 21.2Resource Prices Indexed to Wages, 1950-90(Relative to 1990 Baseline) Table 21.2Resource Prices Indexed to Wages, 1950-90(Relative to 1990 Baseline) Table 21.2Resource Prices Indexed to Wages, 1950-90(Relative to 1990 Baseline) Table 21.2Resource Prices Indexed to Wages, 1950-90(Relative to 1990 Baseline)
Resource 1950 1960 1970 1980 1990 Change ()1950-90
Fooda 386 210 145 161 100 -74
Lumber 170 114 95 126 100 -41
Paper 139 121 97 104 100 -28
Mineralsb 194 147 179 217 100 -48
Energyc 184 126 74 138 100 -46
SOURCE Moore, pp. 18-19, 23, 30-31, 40.aIncludes barley, broilers, carrots, cattle, corn, cotton, eggs, milk, oats, oranges, rice, sorghum, soybeans, wheat and wool.bIncludes aluminum, antimony, copper, lead, magnesium, manganese, mercury, nickel, platinum, silver, tin, tungsten and zinc.cIncludes coal, electricity, natural gas and oil. SOURCE Moore, pp. 18-19, 23, 30-31, 40.aIncludes barley, broilers, carrots, cattle, corn, cotton, eggs, milk, oats, oranges, rice, sorghum, soybeans, wheat and wool.bIncludes aluminum, antimony, copper, lead, magnesium, manganese, mercury, nickel, platinum, silver, tin, tungsten and zinc.cIncludes coal, electricity, natural gas and oil. SOURCE Moore, pp. 18-19, 23, 30-31, 40.aIncludes barley, broilers, carrots, cattle, corn, cotton, eggs, milk, oats, oranges, rice, sorghum, soybeans, wheat and wool.bIncludes aluminum, antimony, copper, lead, magnesium, manganese, mercury, nickel, platinum, silver, tin, tungsten and zinc.cIncludes coal, electricity, natural gas and oil. SOURCE Moore, pp. 18-19, 23, 30-31, 40.aIncludes barley, broilers, carrots, cattle, corn, cotton, eggs, milk, oats, oranges, rice, sorghum, soybeans, wheat and wool.bIncludes aluminum, antimony, copper, lead, magnesium, manganese, mercury, nickel, platinum, silver, tin, tungsten and zinc.cIncludes coal, electricity, natural gas and oil. SOURCE Moore, pp. 18-19, 23, 30-31, 40.aIncludes barley, broilers, carrots, cattle, corn, cotton, eggs, milk, oats, oranges, rice, sorghum, soybeans, wheat and wool.bIncludes aluminum, antimony, copper, lead, magnesium, manganese, mercury, nickel, platinum, silver, tin, tungsten and zinc.cIncludes coal, electricity, natural gas and oil. SOURCE Moore, pp. 18-19, 23, 30-31, 40.aIncludes barley, broilers, carrots, cattle, corn, cotton, eggs, milk, oats, oranges, rice, sorghum, soybeans, wheat and wool.bIncludes aluminum, antimony, copper, lead, magnesium, manganese, mercury, nickel, platinum, silver, tin, tungsten and zinc.cIncludes coal, electricity, natural gas and oil. SOURCE Moore, pp. 18-19, 23, 30-31, 40.aIncludes barley, broilers, carrots, cattle, corn, cotton, eggs, milk, oats, oranges, rice, sorghum, soybeans, wheat and wool.bIncludes aluminum, antimony, copper, lead, magnesium, manganese, mercury, nickel, platinum, silver, tin, tungsten and zinc.cIncludes coal, electricity, natural gas and oil.
http//www.cato.org/pubs/chapters/marlib21.html
Write a Comment
User Comments (0)
About PowerShow.com