An Oct. 20 Facebook post (direct link, archive link) includes a graph that shows global wheat, rice and coarse grain production has increased along with global temperatures and atmospheric CO2 levels since the 1960s.
"World grain production and amount harvested per acre show that crop and food production has steadily increased, with only positive effects from our changing climate," reads part of the post's caption. "If more CO2 and warmer weather were going to cause a decline in world-wide food production, should there not have been some recognizable negative effects by now?"
The post was shared more than 2,000 times in six weeks.
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