Oh. Weather might suddenly become unpredictable? I can't believe it! After these aeons of weather being so predictable and dependable... whatever shall we do???
The idea that weather will suddenly become way more unpredictable than before (whatever "before" is) has zero basis in science. Pure fearmongering. The world has always had unpredictable and changing weather, as well as changing landscapes. Which is why only an idiot (or a modern factory-farming civilization) plants only one kind of crop, and bets the farm (literally) on that crop.
I live in north-central Florida, which is sort of a nexus between subtropical and temperate zones. On a good warm year, I can grow bananas and pineapples. On a good cold year, apples and peaches. With short-term crops like vegetables, I keep an eye on which way temperatures appear to be leaning, and plant accordingly.