cont.
" High CO2 level cause a reduction of photosynthesis in certain of plants. There is also evidence from the past of major damage to a wide variety of plants species from a sudden rise in CO2"
How high a CO2 level?which plants?
What evidence? which plants?
After all the hype around 2015/16 record temps ,what happened in agriculture ,not a mention, why? nothing but record production in the U.S. and around the world. How can that be?
see: World Agricultural Production  Dec.2016 @ USDA . gov.
see: USDA projects record corn and soybean crop in 2016 @ cornandsoybeandigest .com 11/14/16