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Climate Regions and Human-Environment Interaction.

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Presentation on theme: "Climate Regions and Human-Environment Interaction."— Presentation transcript:

1 Climate Regions and Human-Environment Interaction

2 Effects on Climate  Weather – changes in temperature, wind, air, etc. over a short period of time  Climate – weather patterns in a particular area over many years.  The sun’s rays do not hit the Earth evenly. So air and water help distribute the sun’s heat over the entire world.

3 Winds

4  Warm air in the tropics move towards the colder poles. This creates prevailing winds, major wind systems that follow patterns that are similar over time.  These prevailing winds begin to curve because of the planets rotation.  Warm air (high pressure system) moves towards cooler air (low pressure systems). The air wants to reach an equilibrium.

5 Ocean Currents  Currents – steady flowing streams of water in the world’s seas.  Very similar to prevailing winds.  Currents carry warm water to the higher latitudes. They then begin to fall when they begin to cool off.

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7 Local Winds  Local winds – winds patterns that are typical for a certain area.  These are created by different landforms.  Canyons winds, ocean winds

8 Mountains, Temperature, and Rainfall  Rain shadow – mountains block rainfall from reaching other areas  Warm, moist air rises to get over a mountain. As it does, it cools releasing its moisture as rain.  The other side of the mountain is very dry. This is called the rain shadow.  The rain shadow side of the mountain is very dry and hot.

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11 Climate Zones  Why do different parts of the world have similar climates? Give examples.  Climate zones – similar patterns of temperature and precipitation  These regions also have similar vegetation.  Biomes – particular plants and animals that have adapted to a particular climate zone.  Utah has three major climate zones  Desert – 33%  Highland – 24 %  Steppe – 43%

12 Human-Environment Interaction: Air Pollution  Smog – chemicals combined with the ozone. Mostly in major cities and can cause breathing problems.  Acid Rain – chemicals combined with precipitation. Can kill animals and trees and eat away at buildings.  CFCs – chloroflourocarbons. These are manmade chemicals that destroy the ozone layer.  Many nations today are trying to outlaw CFCs.  Which nation is not participating?

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14 Greenhouse Effect  Greenhouse effect – gasses in the atmosphere trap the sun’s rays and warm the planet.  This is a natural process, but most scientists (97.1% of them!) believe that human pollution is strengthening the effect.  There is much debate over this issue…  So let’s debate!

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16 Lithosphere  Deforestation – cutting down forests without replanting.  Over farming a land and deforestation leads to the loss of the top soil.  Crop Rotation – changing of what is planted each year to allow the soil to regenerate.  This helps protect the topsoil.

17 How to save our planet  Conservation – careful use of resources  Protecting our ecosystems and biodiversity.  Not using harmful pesticides of CFCs.  What easy things can you do?


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