global warming issue

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Don't you that if every 1 million people change 8 km of their trip by car to a bicycle for very week, the CO2 emission would lower over 100,000 ton per year. I do feel the effect of global warming, because i work near the sea. I see that sea level become higher every month. Last week, sea level increased over beach barrier and flood can not be resisted. Let save the earth for all of us