It depends where?
I had quite a life living in both Southern California and Alaska
So, so Cal it is bad for global warming as the mediterian climate turns desert for both agriculture and water for citizens and Citris farmers. However, in Alaska WAHOO! Farmers who left Oklahoma in the dust bowl in the 1930's have moved north of Anchorage to Palmer. In the old days the frost free season was only barely 90 days north of Fairbanks central Alaska. Talk about TOUHGH!
Today it is more +120 days as 90 degree days occasionally showing up in the summer a few times a year. This means crops
So there are winners and losers in a warmer climate. Alaska, Sweden, Russia, win in a warmer climate. Unfortunately Africa, India, California and others lose as winter weather systems that bring rain move farther norther.