Chapter 1: Environmental Problems, Causes and Sustainability. Key Concepts. What is Environmental Science?. Growth and Sustainability. Resources and Resource Use. Pollution. What are the root Causes of Environmental Problems. * Environment :.
Chapter 1: Environmental Problems, Causes and Sustainability
Causes of Environmental Problems
Interdisciplinary Science that…
1.) Help us understand how the earth works
2.) Learn how we are affecting the earth’s life support systems
3.) Propose and evaluate solutions to the environmental problems we face.
2.) ENVIRONMENTAL SCIENTIST
3.) CONSERVATION BIOLOGIST
A. Three categories:
1) NATURAL RESOURCE DEPLETION
- Natural resources:
(sunlight, air ,water, soil, plants, minerals, animals, fossil fuels, etc)
resources that can be continually replaced
resources that cannot be replaced
Satisfies the basic needs for…
food, water, air, and shelter
-A poisoning, intentional or not, of our air, water, or soil.
Condition where a species completely disappears from the earth
*Most species are becoming extinct due to habitat loss
Do Do Bird
Giant Ground Sloth
Almost all environmental problems can be traced back to…
Number of people grows too quickly for the earth to support.
People are using up, polluting, wasting things faster than can be replaced.
Fig. 1-3 p. 5Population Growth
* The current world population for mid-year 2007 is estimated at 6,602,224,175
Billions of people
Black Death–the Plague
Fig. 1.1, p. 2
United States Birth rate: 14.14 births/1,000 population (2003 est.) 2.07 children born/woman (2003 est.)
(Hectares of land per person)
Total Ecological Footprint
94 million hectares
1 Hectare = 2.5 Acres
Fig. 1.10, p. 11
-Use of economic rewards and incentives
-Increased economic penalties
-Shift to prevention vs. excess
Chapter 1: videos – Play on Windows Media Player