Friday, October 30, 2009
Thursday, October 29, 2009
Tuesday, October 27, 2009
Anti or Pro Global Warming
I am kind of in the middle. Some days it is really cold and then I see the ice in Antartica melting so I am not really sure.
Friday, October 23, 2009
Global Warming
1) Causes- The causes of global warming are trapping the incoming and outgoing solar radiation by natural greenhouse gases in the layer closest to the Earth, the atmospheric layer. Pollution is also another cause because when we burn fossil fuels, this causes pollution and fossil fuels give off C02 gas. (http://library.thinkquest.org/J003411/causes.htm)
2) Facts- Some effects are the climate could change and there would be a big shift in major agricultural areas. An example is where the Wheat Belt in the U.S. could get less rain and turn warmer which would endanger their grain production. Food experts think that there will be a decrease in the world's grain by 2030. The U.S. and the Mediterranean region of Europe would turn warmer and drier which would make more watering and taking car of crops. The warmer areas would have a higher sea level and oceans will warm. Polar sheets of ice and mountain glaciers would melt. Little increases would endanger low-lying islands because they might flood.
3)Controversy - People are arguing about limiting greenhouse gases. The U.S., Japan, and Canada all agreed to a reduction of greenhouse gases below 1990 levels. Even though the U.S. agreed, they emitted the larges abount of greenhouse gas per year. People want to limit greenhouse gases because they are one of the number one causes of global warming.
2) Facts- Some effects are the climate could change and there would be a big shift in major agricultural areas. An example is where the Wheat Belt in the U.S. could get less rain and turn warmer which would endanger their grain production. Food experts think that there will be a decrease in the world's grain by 2030. The U.S. and the Mediterranean region of Europe would turn warmer and drier which would make more watering and taking car of crops. The warmer areas would have a higher sea level and oceans will warm. Polar sheets of ice and mountain glaciers would melt. Little increases would endanger low-lying islands because they might flood.
3)Controversy - People are arguing about limiting greenhouse gases. The U.S., Japan, and Canada all agreed to a reduction of greenhouse gases below 1990 levels. Even though the U.S. agreed, they emitted the larges abount of greenhouse gas per year. People want to limit greenhouse gases because they are one of the number one causes of global warming.
Thursday, October 22, 2009
Today in class we reviewed everyone's powerpoints. Here are my notes:
Solar energy-
• Takes pressure off of natural resources.
• Sun emits radiation and this is re-radiaion trapped by the clouds which makes life possible on earth.
• Responsible for weather patters and ocean movement.
• Clouds and wind can prevent the Sun's energy from reaching the Earth.
• More reaches tropics than northern Alaska.
Latitude-
• The tropics are much warmer because of curvature of the Earth.
• Measured in degrees.
• Helps determine what the climate is like.
Interaction Between Land and Water
• Land areas heat and cool faster than bodies of water which is why the temp. is hot in the summer and cold in the winter.
• Continentally- inland climates with hot summers and cold winters.
• Maritime Climates- that are close to ocean with cool cloudy summers, and cold winters but not freezing.
• Global arrangement of continents has a big role on the world climate.
Global Pressure Patterns
• Earth is unevenly heated.
• Large oceanic cells expand during warm summer months.
• Enlarged cells make rainless summers.
• Typhoons are formed in Asia.
• Hurricanes are formed in North America and Caribbean in summer months.
• Patterns depending on the seasons.
Global Wind Patterns
• Trade winds- warm low breezes that blow most of the time.
• Wind is blowing all the time.
• Different wind patterns like trade winds, doldrums, prevailing westerlies, polar easterlies.
• Air flows from high pressure to low pressure so winds flow into low-pressure cells.
Solar energy-
• Takes pressure off of natural resources.
• Sun emits radiation and this is re-radiaion trapped by the clouds which makes life possible on earth.
• Responsible for weather patters and ocean movement.
• Clouds and wind can prevent the Sun's energy from reaching the Earth.
• More reaches tropics than northern Alaska.
Latitude-
• The tropics are much warmer because of curvature of the Earth.
• Measured in degrees.
• Helps determine what the climate is like.
Interaction Between Land and Water
• Land areas heat and cool faster than bodies of water which is why the temp. is hot in the summer and cold in the winter.
• Continentally- inland climates with hot summers and cold winters.
• Maritime Climates- that are close to ocean with cool cloudy summers, and cold winters but not freezing.
• Global arrangement of continents has a big role on the world climate.
Global Pressure Patterns
• Earth is unevenly heated.
• Large oceanic cells expand during warm summer months.
• Enlarged cells make rainless summers.
• Typhoons are formed in Asia.
• Hurricanes are formed in North America and Caribbean in summer months.
• Patterns depending on the seasons.
Global Wind Patterns
• Trade winds- warm low breezes that blow most of the time.
• Wind is blowing all the time.
• Different wind patterns like trade winds, doldrums, prevailing westerlies, polar easterlies.
• Air flows from high pressure to low pressure so winds flow into low-pressure cells.
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