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Published byKevin Simon Modified over 9 years ago
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By understanding how the Earth’s physical features and processes shape and are shaped by human activity, geographers help societies make informed decisions.
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1. How Does the Environment Influence Human Behavior? 2. How Do Humans Influence Their Environment?
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Adapting to the environment Modifying the environment
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Settlement patterns Housing materials Agricultural activity Recreational activity Transportation patterns
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Diverting water: dams, canals, polders Changing the landscape: terrace farming, deforestation, desertification Changing the environment: acid rain, pollution
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FACTS: Built in 1979 Control Flooding Nile River Aswan, Egypt Lake Nasser
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Helped with Irrigation Decreased soil fertility
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FACTS: Located in Central Asia Between the countries of Uzbekistan Kazakhstan Formerly USSR: Diverted water to grow cotton/rice on nearby farms.
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Water for irrigation and poisonous runoff from the fields have caused the sea to shrink and increased desertification.
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FACTS: 1450 miles Through SW U.S. and NW Mexico Source – Rocky Mtns. Mouth – Gulf of California
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More than 20 dams Water diverted to the Imperial Valley for farming and growing population No longer reaches the Gulf of California
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FACTS: Located in Northern Europe Most of the country is below sea level. Sea walls/dunes protect it from the sea.
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Rainforest FACTS: Contain more than ½ the world's 10 million species of plants, animals and insects One-fifth of the world's fresh water 20 percent of the world’s oxygen Areas of Deforestation Brazil – SA Nepal – Asia Malaysia - Asia
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Once covered 14 % of earth. Now cover 6% 1-1/2 acres lost every minute
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Spread of desert-like conditions Greatest Areas of Impact: Africa – Sahara Desert Asia – Gobi Desert Central Asia SW United States
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CAUSES: Overgrazing Drought Poor Farming Techniques Overpopulation Natural Climate Patterns
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Given the causes, where might you find acid rain the most?
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Developed Countries: US, Europe, China
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Coniferous forests in the Appalachian Mountains destroyed by acid rain.
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AIR
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LAND
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WATER
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Mexico City, Mexico Buenos Aires, Argentina Beijing, China Cairo, Egypt Seoul, South Korea Karachi, Pakistan Jakarta, Indonesia Los Angeles, California USA
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Mexico City reports unhealthy ozone emissions nearly 85% of the year. Mexico's geographical location--in the center of a volcanic crater and surrounded by mountains-- locks in the air pollution, causing smog to sit above the city.
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Chernobyl, Ukraine - Chernobyl is now infamous for the 1986 nuclear disaster that killed 30 people, forced 35,000 to evacuate their homes, and left a 19-mile radius around the plant that is still uninhabitable to this day.
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