final

Established national air quality standards for primary and secondary pollutants

Environmental impact statements must be prepared for any federal project

Agreement among nations to reduce greenhouse

Identifies endangered and threatened species in the US and puts their protection ahead of monetary gains

An agreement among nations to phase out ozone depleting substances

Is associated with CERCLA

March 1979, loss of coolant water and mechanical failures led to a partial meltdown of Reactor #1

March 2011, Nuclear Reactor meltdown as a result of a tsunami triggered by an earthquake

April 1986, a series of explosions led to a complete meltdown and explosion of a nuclear reactor

Example of a transform fault sliding plate boundary

Divergent boundary where new crust is being formed

Region of continental-continental convergence

Region of oceanic-continental convergence

Volcanic Island Arc

Aluminum

CO2 CH4 CAFOs N2O CFCs

cause wind

Accumulation of salts from water. Arid/Semi arid regions. Salt stunts plant growth and kills them

Flush with freshwater or grow salt tolerant crops

Soil used in a non-sustainable way becomes more desert-like. Common in marginal lands due to over-grazing, non-native plants,etc.

Add organic matter and plant native species

Soil becomes saturated by irrigation or precipitation, the water table rises and plants drown.

Add humus or organic matter to absorb water like a sponge, OR, make holes in the soil (aerate) to promote drainage