Man has often considered nature to be a territory, which can be exploited to his advantage. However, in innumerable mysterious ways, nature has retaliated. In the face of an impending disaster, nature has given off warning signs that Man has either failed to read or ignored at his own peril.
Today scientists are all ears to nature, because she can warn them in time. The first signs of global warming are seen near the surface of the earth and in the upper atmosphere. The ten indicators of climate change include measurements of sea level rise taken from ships, the temperature of the upper atmosphere taken from weather balloons, and field surveys of melting glaciers.
Antarctica appears to be getting warmer. Even a change of half a degree Celsius in temperature can have disastrous effects. Over the last 50 years, average temperatures on the continent have increased by 2.5 degrees Celsius. In 1995, a gigantic glacier broke off and floated out to sea. This incident was a revelation to the scientists across the globe. Such incidents are indications that global warming is happening.
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