You seem to have confused the source of the graphs with a paper that cited them. I don't know how you did that, since the source is shown right on each of the graphs.
1/10. Mouse wrote, "Increased CO2 does not increase the yield of maize or corn."
Wrong:
Even though I've seen it over and over, it still seems strange to me that climate activists just make things up like that. Surely you must realize that the benefits of elevated CO2 for corn/maize have been measured, right? So why do you do that??
3/10. Although C4 plants are better at scavenging CO2 from the air at low levels than are C3 plants, the most important C4 crops, corn & sugarcane, have been found to benefit dramatically from higher CO2 levels.
(That's probably because they grow so fast. On a still, sunny day, a healthy corn field can deplete the CO2 in the air by noon, at which point it stops growing. With a higher starting level, it can grow longer before running out of CO2.)
@ciais_philippe 2/7❯ The benefits of rising CO2 levels for agriculture are spectacular. CO2 is not the only reason for improving crop yields, but it is one of the major reasons:
@ciais_philippe 3/7❯ The best scientific evidence shows that CO2 emissions are beneficial, and manmade climate change is modest and benign. Here are some relevant studies: sealevel.info/negative_socia…
@AkademiskC 2/7》Here's the Most Trusted Man in America™ (Walter Cronkite) reporting on the threat of Global Cooling, 9/11/1972:
Prof. Hubert Lamb (the source who Cronkite cited) was founding director of the UEA Climate Research Unit.
@AkademiskC 3/7》Here's a 1974 CIA report about the looming threat of a return to the neo-boreal conditions of the Little Ice Age (global cooling). It summarized the scientific consensus: