Since the mid nineteen sixties, environmentalism has exploded as a movement. Many environmentalists view modern industrial society as unsustainable and the way that western society functions as damaging the earth's natural biosphere and cycles.
There is a growing body of evidence to support the belief that our consumer culture and industrial processes are in fact destroying the delicate balance and complex interrelationships that nature has forged and upon which we still rely. The biggest worry of most 'green' groups at present is the well documented 'global warming' effect in which it is believed the earth's average temperature is rising, causing sea levels to rise (more to do with thermal expansion of water than ice cap melting), destruction of natural habitats and most worryingly to humans; climate change. However it would be ignorant to believe that the earth has always been as it is now, indeed rapid climate change is a natural phenomenon which has occurred countless times in the earths history; ice ages and warm periods mark definite periods in earths living history, a period of extreme warmth for example marked the Cretaceous / Tertiary era boundary where over 90% of the
Other statistics show the level of destruction in recent times since industrialisation, 150.000 sq. Km of tropical rainforest, equivalent to the size of Wales, was being destroyed every year between 1950 and 1990. (http://www.tree4life.com/ingles/deforest3.htm).
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