Approaches to Environmental Issues Preservation (Tree Huggers ) Ecosystems shouldn’t be disturbed by humans. Conservation – The wise use of resources. Reduce, Reuse, Recycle Developmental – Most valuable parts of the environment are those that can be used by man. This can lead to depletion. (Depletion – Reducing resources due to population growth, usage, etc. )
Population Growth and its effects on our environment Where does all the trash go? What do we do about sanitation? More people means more usage of resources. More people means more food to be produced, more pesticides used, more land for houses, more energy needed for heating and driving, etc. etc. etc.
Pollution – Any change to the environment that has a negative effect on living things. Air Pollution Water Pollution
Pollution – Any change to the environment that has a negative effect on living things.
**Air Pollution** Emissions – particles and gases released into the air from cars, planes, etc., including volcanoes. Most air pollution comes from burning fossil fuels. Advantage to nuclear energy is that it doesn’t contribute to air pollution.
Acid Rain Gases react with water vapor in the air to form sulfuric acid. Comes in forms of snow, sleet, or fog as well as rain…
Can air pollution cause Global Climate Changes? Global Warming Greenhouse Effect
Point Source Pollution - is water pollution that comes from a single, discrete place, typically a pipe. Non-Point Source Pollution - Pollution that originates from multiple sources over a large area.
What we can do… Emission control : ex. Scrubbers Sewage Treatment Plants Alternatives to Fertilizers and Pesticides Reduce, Reuse, Recycle, Refuse
Forests and Fisheries Ways forests can be managed to protect resources and habitats….. Ex. Selective cutting vs. Clear cutting Ways fish and other wildlife can be protected Ex. Fish Hatcheries, Wildlife preserves Gone Fishin Activity