You guys are both right. He is downplaying the affect of climate change. It’s not just going to be “some reduction in the standard of living”. You are wrong in thinking there will be no food.

Some crops may not be available year-round, for any price. Right now you can get tropical fruit any month in colder climates. This may go away for many months of the year. Maybe shipping is disrupted by larger storms, so goods take longer to arrive.

Basically it may be like during the pandemic when transportation shut down, and you couldn’t get some goods at any price. That’s more than a “reduction in standard of living”.