... by the middle of the next century. The warning will be the greatest at the higher latitudes of the Northern Hemisphere, with the largest temperature rises occurring in winter. Most areas will experience summertime highs well above 100 degrees Fahrenheit. New temperature records will be set each year. As a possible ... the adverse effects of rising sea levels as the ice caps melt under rising the ocean temperatures. If the present melting continues, the sea could rises as much as 6 feet by the middle of the next century. Large tracks of coastal land would disappear, as would shallow barr...

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• Grade Level: High School

... fuels. Photosynthesis is performed mainly by higher-level plants and algae. These organisms convert carbon dioxide in the atmosphere into carbohydrates. The reaction also involves water and sunlight for energy. The reaction can be represented by the chemical equation: CO2 + H2O C3OH Fig. 2: The carbon cycle ... increase in biomass production in many species of trees (Tektran, 1998). Other studies have attained similar results. A higher concentration of CO2 was also found to increase drought tolerance in certain species of trees. This occurs because high CO2 concentrations cause trees to...

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... occur at the same time. Natural variations in temperature could be caused by variations in the earth's orbit, or variations in the sun's output, or several other factors including sulfur dioxide emitted by volcanoes. The precise contributions of these natural causes of temperature variations are ... middle of the next century. The warning will be the greatest at the higher latitudes of the Northern Hemisphere, with the largest temperature rises occurring in winter. Most areas will experience summertime highs well above 100 degrees Fahrenheit. New temperature records will be set each year....

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... of the Earth because certain gases in the atmosphere such as water vapor, carbon dioxide, nitrous oxide, and methane, trap energy from the sun. These greenhouse gases allow incoming solar radiation to pass through the Earth's atmosphere, but prevent most of the outgoing infrared radiation from the surface ... the amounts of N2O in the atmosphere. After talking about the excess emission of the greenhouse gases, the impacts of the global warming are also what the scientist nowadays concern about. The first impact of the global warming is human health. Climate change may affect people's heal...

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• Grade Level: High School

... greenhouse gases, all build up in the atmosphere of the earth. All these gases make it so that it becomes harder for the radiation that the sun shines into the atmosphere to escape. The heat continues to build up and this is what causes the temperatures to increase. I know this seems like ... problems could happen on a little Native Island in the middle of an Ocean. On these islands usually where native tribes live, if the sea level rises three fourths of a meter then half of the island will sink. This could happen in many different islands around the world and if the water keeps ... bit...

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• Grade Level: High School

... a large sheet of ice that moves very, very slowly. Some melting glaciers add more water to the ocean. Warmer temperatures also make water expand. When water expands in the ocean, it takes up more space and the level of the sea rises. Sea level may rise as much as 2 feet during the next century. This will effect both natural systems and manmade ... with preventing and treating health problems. Very young children and the elderly adults will run the highest risks. Gases in the atmosphere such as carbon dioxide and methane trap the sun's energy and warm the earth. This natural "greenhouse ...

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• Grade Level: Undergraduate