Ch.23 section 3

ENVIRONMENTAL INTERDEPENDENCE

ChallengesAir pollution due to

urban industryA 2004 World Health

Organization (WHO) evaluation found that air pollution contributed to 100,000 premature deaths and the loss of 725,000 working days annually

CFC’s and aerosol containers on environment

High levels of carbon monoxide and greenhouse gases lead to global warming.

Global Warming…By the Numbers2030…Year by which Glacier National Park

will have no glaciers left, according to the U.S. Geological Survey predictions.

400,000…Square miles of Arctic sea ice that have meltedin the last 30 years (roughly the size of Texas), threatening polar bear habitats and further accelerating global warming worldwide,  according to the Arctic Climate Impact Assessment.

15-37%... Amount of plant and animal species that global warming could wipe out by 2050.

1…Rank of the United States as a global warming pollutercompared to other large nations.

Water PollutionHighly impacted by

industrial waste, pollutants, and pesticides

EPA regulates businesses to make sure they meet code.

Clean Water Act of 1972 a result of Cuyahoga River catching on fire in 1969.

Clean water act regulates “point” sources

Decommissioned battleships and tankers cause potential radiation and oil hazards

Protecting Our Natural ResourcesBattle to reuse

renewable resources Nonrenewable

resources cause for even bigger concern (oil, coal, precious metals)

Allocation of resources in different parts of world vary

Biggest concern with resources….economic and rural development

Protecting Our Natural Resources (cont.)Population growth limits

availabilityWorld population???Top three most

populated countries???Nearly 30 “megacities”

by 2015 (more than 10 million pop.)

Need healthy economies to “feed” growing populations

Economic development leads to deforestation and further resource depletion.

For Homework…

Please answer #4 on pg. 542 of your textbook. Your response MUST be typed and be at least ½ page.