O http://www.youtube.com/watch?v=6LAT1gLMPu4

Industrial Growth O Pollution of air, water, and soilO Dense human communities produce

much waste O Using up land and placing stress on

natural habitats

Nonrenewable O NonrenewableO Resources such as ores of various

metals, oil, and coal that exist as finite deposits in Earth’s crust

O Cannot be replenished by natural processes as they are mined

Fossil FuelsO Crude oil, coal, and natural gas

provide 86% of U.S. energy consumption

O 81% of world’s consumption

TurbogeneratorsO Primary energy source is used to boil

water O This creates high-pressure steamO Steam drives a turbine- a

sophisticated wheelO Turbine connected to a generator O Coal, oil, and nuclear energy are

most commonly used as the primary energy source

Gas turbinesO High pressure gases drive the

turbine O Usually natural gas is used

RenewableO Biological resources that may be

renewed by reproduction and regrowth

O Conservation to prevent overcutting and to protect the environment is still required

Renewable Energy Sources

O HydropowerO WindO SolarO BiomassO Geothermal

O Groups of 3-4O Two groups per energy sourceO Presenting

Rubric O Explanation for how this energy source

worksO At least 2 AdvantagesO At least 1 Disadvantage O About what percentage of the U.S.

energy is provided by this energy source?

O At least one interesting fact or any additional information

O Each member of the group participates and has a speaking role.

Topics for FridayO Wolves in YellowstoneO Rabbits in AustraliaO Feral PigsO California CondorO Pro-Hunting and Anti-Hunting O Zebra Mussels O Kentucky ElkO Brook trout

Biodiversity O Biodiversity- the variety of life on Earth O the sum total of the genetically based

variety of all organisms in the biosphere.

O Species diversity- number of different species

O Genetic diversity- variations of genes among members of a population

O Ecosystem diversity- dependent on interactions of species in a location

Hotspots of Biodiversity

Threats to Biodiversity O Habitat LossO Introduced or Non-native speciesO Pollution O Overexploitation

Habitat LossO In a study, researchers examined

that in the U.S., habitat loss caused the greatest threat to biodiversity

O Ex: fragmentation of forests, coastal degradation

O 60% of coral reefs destroyed or on the verge of being destroyed