There are already places where humans live that crops won't grow, so humans will likely endure more than our crops will. At least for the crops we currently gro

There are already places where humans live that crops won't grow, so humans will likely endure more than our crops will. At least for the crops we currently grow. But it's more nuanced than just temperature. With increasingly extreme weather events that last longer, even in places where crops can grow, they will get wiped out more frequently. Think of increased instances of drought, flooding, wildfire etc. Even just too high winds, heavier rains, hail and increased instances of icing/wind chill will be impactful for food supply. We already see this too, depending on whether or not we choose to blame climate change there have been a number of weather events impacting the supply and price of various farmed goods. Lettuce became somewhat of a luxury commodity in Australia due to recent flooding, for just one example. That sort of thing will become more frequent.