From the previous thread.

re: #324 Targetpractice

So much for the “Climate change will be awesome because all that CO2 will be beneficial to farming!” argument. Kinda hard to farm much of anything if you and your fields are under several feet of water.

Actually, there’s another side to the problem. The current research being done on crop plants grown in high CO2 environments show a decrease in nutritional density.

A quick synopsis from Forbes

Every plant has a particular genetically-determined temperature range in which it grows quite happily, but temperatures outside this range can wreak havoc on that plant’s life cycle. Thus, increases in surface temperatures in tropical and subtropical regions, such as those expected by the end of this century, are predicted to reduce rice and maize harvests by 20% to 40%.

Now, a new study published in the journal Science Advances has become the latest in an increasing number of studies to show that rising CO2 levels also threaten food security in another way: by directly decreasing the nutritional value of major crops.