Final Flashcards
Adaptions
Actions that cushion against impact of climate change
Mitigation strategies
Actions that will reduce the amount of greenhouse gases emitted
Geoengineering
Deliberate modifications of the earth’s environment to affect the climate
Life Cycle analysis
Quantifying emissions released at all stage - production, distribution, use, eventual disposal
Fossil Fuels
Essential non-renewable due to time needed to form Coal, Oil and Natural gas
Fuels that don’t produce greenhouse gases directly
Nuclear, hydro power
Coal
Energy derived from photosynthesis of prehistoric wetland plants, high energy to weight ratio, burning coal releases huge amounts of pollutants
Oil
Result from decay of plankton and other matter at bottom of oceans. Used for transportation and heating
Natural gas
Made of methane, contains more H and less C than oil, one of the “cleanest” forms of fossil fuels.
Nuclear Power
Energy comes from chain reaction - bombard isotopes with neurons. Splits into lighter atoms, releasing more neutrons creates more fission, huge amount of energy released, produces no greenhouse gases
Hydropower
Mechanical energy of moving water
No direct emissions of greenhouse gases
Indirect - decay of flooded vegetation in reservoirs, behind dams, C stored in soil
Energy Efficiency
Portion of unit of delivered energy that is used in the specific, desired way for which that energy is sought
Double paned window
Reduce heat transfer, simple window-heat transferred when there is temp different on tighter side of glass
Geothermal heat pumps
Uses relatively constant temp. of the earth as a heat sink-heat source
Green roofs
More expensive to build but absorb rainwater, provide insulation, habitat for wildlife