Increase irrigation demands:

In a Brazilian watershed, Gondim et al. (2012) determined that irrigation waterdemand will increase by 8–9% by the mid-21st century using monthly climate projections. Demand increases were attributed to projected rainfall decreases (11–18%) and evapotranspiration increases (6.5–8%).

Well, both latitude and intensity of light affect temperature because, the higher the light intensity, the higher the temperature and since latitude is the measure of how close you are to the equator, then the closer to the equator you are, the higher the temperature is.