GLOBAL WARMING IN THE 21ST CENTURY: AN ALTERNATIVE SCENARIO BY JAMES HANSEN

Global Warming in the 21st Century: An Alternative Scenario

By James Hansen

Global Warming in the 21st Century: An Alternative Scenario

By James Hansen

Article review

This article of research is chosen for review because first of all, this article has been discussed in the class, and second is that it is best for evaluating the issue.

The article is typical but gives a comprehensive and scientific study about the hazardous of global warming and its effects in the earth.Also emphasies on the issue of green house effect.

Through the study of ice cores from Antarctica form this article; it is possible to compare atmospheric concentrations of the dominant greenhouse gas, carbon dioxide (CO2) in the atmosphere with temperature variations over the past 400 thousand years of the earth's history. A visual comparison of the two trends indicates a very tight connection between their performances, with fluctuations in one plot almost exactly mirrored in the other for more than 400 thousand years.

This article also explores the fact that climate change is very likely having an impact now on our planet and its life. And the future problems caused by rising seas, growing deserts, and more frequent droughts all look set to affect the developing world more than rich countries, they add.

The most important issue of green house effect is also under observation in this study. The increase in greenhouse gases caused by human activity is often cited as one of the major causes of global warming. These greenhouse gases reabsorb heat reflected from the Earth's surface, thus trapping the heat in our atmosphere. This natural process is essential for life on Earth because it plays an important role in regulating the Earth's temperature. However, over the last several hundred years, humans have ...