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We can use several different methods. If we look at historical data like Vostok we can see that the earth goes through cycles. We know we are in a warming cycle that started over 10,000 years ago and normally lasts about 100,000 years. From this we get the idea we will see warming for awhile yet.

The next method we have is a very limited observation of actual weather changes. We know that 1850 was a low point known as the mini ice age and we have seen warming since then. From unusually low periods like this and a known warming trend, most science experts agree that warming should occur.

We now have the ability to enter all this data into computers and programs.

We use these programs to make very elaborate predictions as to future climate.

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6y ago
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11y ago

The scientists observe the changes in climate very carefully. They know that the daily changes in climate are caused by storms and fair weather moving over the Earth . They know that the seasoning changes are due to the turning of Earth around the sun.The most important cause of climate is the heating and cooling of the air.

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11y ago

Food webs

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Q: What helps scientists predict how communities will be affected by change?
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Scientists predict that climate change will lead to "weather events" that are more frequent and more severe.


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They use actual data gathered from previous weather patterns, temperatures and other information.


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Now, scientists can only predict the location and what it could do. They can't predict exactly when, example would be, they only know an earthquake will hit Japan between now and 10 years. They also can't predict how big/destructive it will be. (Not very helpful, predicting earthquakes...)


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Climate is easier to predict than weather, as climate is not subject to the same vagaries. Scientists use complex computer simulations to model climate change. Climate models have successfully predicted changes on all seven of the eight planets in our solar system which possess atmospheres. Mercury, with no atmosphere, essentially has no climate.


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How do scientists use the study of plate tectonics to understand the history of Earth's surface and its future changes?

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