Answer quesitons Essay Example | Topics and Well Written Essays - 1000 words

Answer quesitons - Essay ExampleThis bum cause confusion, and frequently worse. Sometimes people even use this confusion to promote their own goals, politically or otherwise. This is what has happened with the occurrent climate change debate. An objective look and scientific data show that climate change is in fact happening, that, historically, a shifting climate rather than a stable climate is the norm on Earth, and there is a relationship between carbon in the atmosphere and global temperature though there are also a great sight of complicating factors as hearty.On the one hand, it would appear that it is very difficult to establish a historical trend of world temperatures we have only been measuring and arranging temperatures for around the past one hundred and fifty years before that we supposedly receipt very little. And on the surface this is true, we do not know exactly what temperature existed before the current period. But this belies the fact that there are excel lent proxy measurements that have been shown to be relatively accurate when calibrated to current temperatures. We have ice-core samples that demonstrate how much snow has fallen in particular years, which can give a rough gauge of temperatures (National Research Council), as well as tree rings which show how well trees grew in a particular year (NRC). This data, when taken collectively and studied with statistical and scientific eye, can give a relatively accurate approximation of temperature over the last two thousand years. This can be combined with historical records (good and bad harvests, for instance, or records of when lakes and rivers freeze and when they do not), to be extra sure that the calibration is accurate, which has been done by several scientists/historians (Edwards 129). But this is something that lay people have a sullen time understanding, which might cause some to doubt their findings.These