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Politics : Formerly About Advanced Micro Devices
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To: J_F_Shepard who wrote (609512)4/30/2011 10:02:07 PM
From: TimF1 Recommendation  Read Replies (1) of 1576547
 
CO2 is much less harmful than those other substances. In normal concentrations is beneficial and necessary. Increasing that concentration may have harmful effects or it may not, the other substances are more clearly harmful, in some cases strongly toxic.
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