O MPu4 MPu4

Industrial Growth O Pollution of air, water, and soil O Dense human communities produce much waste O Using up land and placing stress on natural habitats

Nonrenewable O Nonrenewable O 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 Fuels O Crude oil, coal, and natural gas provide 86% of U.S. energy consumption O 81% of world’s consumption

Turbogenerators O Primary energy source is used to boil water O This creates high-pressure steam O Steam drives a turbine- a sophisticated wheel O Turbine connected to a generator O Coal, oil, and nuclear energy are most commonly used as the primary energy source

Gas turbines O High pressure gases drive the turbine O Usually natural gas is used

Renewable O 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 Hydropower O Wind O Solar O Biomass O Geothermal

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

Rubric O Explanation for how this energy source works O At least 2 Advantages O 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 Friday O Wolves in Yellowstone O Rabbits in Australia O Feral Pigs O California Condor O Pro-Hunting and Anti-Hunting O Zebra Mussels O Kentucky Elk O 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 Loss O Introduced or Non-native species O Pollution O Overexploitation

Habitat Loss O 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