Complete nonsense. Even climate chance won't change the amount of rainfall we get over the course of the year. In fact, it will most likely be wetter due to it.
But it will become more uneven, with droughts followed by torrential rains and floods. We simply need to adapt by creating underground water basins that store torrential rainfall preventing floods and also serve as buffers for when the drought comes.
I do believe places like Spain could see more desertification, though. But they were at the brink for centuries in any case, especially inland.
Of course it does, Hungary is turning into a desert. Quite easy to see if you live here. And it's only the beginning.
I’ve been to quite a few deserts that get the occasional seasonal torrential rain.
They still remain deserts nine to ten months out of twelve.
The water saturates the soil, can’t percolate to underground aquifers where it could otherwise be stored, and runs into (ephemeral) rivers, washing away some of whatever is left of the soil with it.
I wouldn’t be surprised if two places could have roughly the same yearly amount of precipitation yet look completely different depending on how the rainfalls are distributed over time.