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Politics : Politics of Energy
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To: Brumar89 who wrote (74511)1/28/2017 10:33:47 AM
From: teevee  Read Replies (1) of 86355
 
As long as increased CO2 is enhancing plant growth, there isn't too much of it.

During the last ice age, CO2 was so low, trees were undergoing starvation. Low CO2 levels are a threat to life on earth.


Trees and many other plants continue to be starved of CO2, the main reason why green houses pump lots of CO2 into their indoor crops. Indeed, it is the small increase in CO2 over the last 50 years that is responsible in large part for the cereal crop productivity gains that feed a growing world population, and a net decrease in in desert areas-the world is greening.
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