Also, higher temperatures meaning higher dew point and more evaporation which leads to a net increase in precipitation.
This is also a good thing. Since the net increase in temperature from a higher CO2 will be small, a max increase a good bit less than 2C (estimated to be about 1.6C on the high side of the range), food production will increase. There is nothing bad from rising CO2. The Earth and all its residents benefit most from about 1200ppm. We have about 800ppm left to go.