Water issues Scarcity Water rich vs water poor Areas Water wars Contamination Health implications

Unique properties of water

Water Numbers Earth covered by water How much Salt Fresh Ice Groundwater Surface water

Uses of water Ag Issues Methods of irrigation Pros / cons Salinization How can conserve Hydroponics Industry Household Biggest uses conserve

Ground water Aquifers Description issues Pros Cons Subsidence Wells Water tables Recharge Confined vs Unconfined

Surface water Flooding Runoff Deforestation Vegetation Erosion Fast or slow Paved surfaces

Surface water Issues/benefits of: Rivers Riparian zones Dams – What happens when we dam them Pros/cons of dams Wetlands Ecological & economic services/benefits What is happening to them Estuaries Lakes terminal

Lake layers Littoral Limnetic Profundal Benthic Turn-over When benefits

Eutrophication Productivity/nutrients/life/turbidity Causes Oligotrophic Lakes Eutrophic Lakes Cultural eutrophication Causes Problems Solutions

Ocean Layers - light Coastal Euphotic Aphotic Bathyal Abyssal Benthic Pelagic Where are the organisms/what do they do Plankton Nekton Benthos Decomposers

Marine ecosystems Where/ Issues / problems /services provide: Coral reefs Bleaching Mangrove forests Sea kelp & sea grass

Desalinization Why is this happening Where is it happening What are the methods Pros Cons

Fishing Tragedy of the Commons Industrial fishing methods Why is ocean hard to protect Fishery collapse Why examples Solutions Laws

Aquaculture Describe Help or hurt Pros cons

Ogallala Aquifer Why significant Where is it Problems

Three Gorges Dam Where Why significant Pros Cons

Aral Sea Where Why significant Issues

Lake Chad Where Why significant issues

Colorado River Where Significance issues

Florida Everglades Where Significance issues

Lake Baikal Where significance