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international / environment / feature Friday September 20, 2019 00:43 by 1 of indy
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The case is made for the provision of free public transport in every major town and city worldwide for a multitude of reasons. It has always been a good idea and should have been done a long time ago, but now with three major issues of our time; resource depletion, including oil, pollution and the climate crisis; they make it imperative that we move to such a system, both to conserve dwindling supplies of cheap energy, to reduce the use of vast mineral resources to make hundreds of millions of cars and to dramatically reduce our carbon emissions because climate change is happening faster than expected. The Earth's climate has turned out to be more sensitive and complex than anticipated as evidenced by the recent dramatic record breaking summer ice melts in the Arctic1 in 2007, 2008, 2012 and basically every year since then. With such a large change in the albedo or reflectivity over a huge area of the Arctic, this signifies the jump into positive feedback of the climate system, although it is not the only positive feedback. Combined with preliminary reports that frozen methane is beginning to be released from the Arctic sea floor and tundra and given that methane is 20 times more powerful as a greenhouse gas, it is clear we are probably at the point of things running out of control. Emissions need to be cut drastically, starting about 20 years ago. read full story / add a comment |
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