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Monday, 11 April 2011

The great global climate change

Did the earth get hotter? Yes. Is it common? Yes. Since 1900, the average temperature has increased by 0.7 degrees Celsius. Over the past 300 years, the temperature has risen by about 0.6 °C. Of course, we didn’t have cars and electricity for most of this time. So the great climate debate is not if the earth is getting hot or not but if or how we earthlings are having an impact on the global climate.
The first person to suggest climate change due to human activities was made by Swedish scientist Svante Arrhenius, in 1896. However, American geophysicist Roger Revelle is credited for making the first high-level global warming predictions, in 1965. Now, everyone from grandma to the United Nations is in on the debate. The only ones sitting out are the bookies, perhaps because long term predictions about the climate are too risky. Read more

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