All - Test1Material 08:53 PerpetualResources( Wind...

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Renewable Natural Resources 1001 Test 1 Material 08:53 Perpetual Resources (developing technology – better ways to use these resources) Wind Geothermal (pump water into earth’s crust, turns to steam, use steam to power things) Solar Tidal Non-renewable Resources (efficiency and recycling) Oil Coal Minerals Renewable Resources Soil Forests Rangeland Wetlands Wildlife Fisheries Health and productivity depends on: Conservation (opposite – Preservation – not possible) Land Use Planning Stewardship (taking care of something – ecosystems)
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Sustainability (harvest the interest, keep the principal) Conservation Concepts Conservation History – Pragmatism (scarcity) and idealism (preservation) Impacted by a lot:  economics, politics, culture are important Famous Conservationists: Gifford Pinchot – Chief USFS 1905-1910 (conservationist but if resources were capable  of making money he believed they should be used) John Muir – Sierra Club 1892 (protect nature) David Brower – Sierra Club / Friendship of the Earth (radical and was kicked out of  Sierra Club / founded Friendship of the Earth but was kicked out also) Theodore Roosevelt – 230 Million acres in federal system (preserve by setting aside  areas and leave them untouched) Aldo Leopold (Most famous in U.S.) The “land ethic” – a respect for nature A way to look at nature Environmental Viewpoint – concerns over ecological integrity have replaced concerns  over supply Hydrologic cycle – how water moves across the world Aquifers – underground wells and rivers where we get water from Disconnection – disconnected rivers from flood plains Salinization -  grow crops in desert Waterlogging Pollution
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Environmental Ethics – a healthy environmental heritage is a primary responsibility Ecological Economics – frontier ethics not viable, sustainability should be the focus Conservation of Biodiversity – which habitats do we protect? “Biodiversity hotspots” – areas where large amount of various species occur Conservation Principles Principle of no waste in nature Principle of recycling and reuse Principle of recycling limitation Principle of ecosystem relationships Principle of Ecosystem Relationships “Mesocarnivore release” Habitat Fragmentation Principle of the Commons Without property rights, resources become degraded Well water levels “We don’t inherit the Earth from our ancestors, we borrow it from our children” – David  Brower
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Resource Problems  – quantity, quality, productivity Quantity Absolute Resource Scarcity – don’t have enough of to meet present or future demands  (running out) ex. oil, coal Efficiency, recycling, alternatives Relative Resource Scarcity ex. water Efficiency, recycling, urban planning?
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