In one sentence: Regions that depend primarily on
irrigation from surface water will be more vulnerable to drought as the impacts of irrigation on water supply are most significant during times with low water flow, according to climate modeling research from Pacific Northwest National Laboratory.
Not exact matches
I would suggest that the amount of
water we put in the atmosphere
from irrigation is huge, but the amount NOT put in the atmosphere due to human use and urban impermeable
surfaces is also large, and I have not looked into the numbers.
They further suggest that
irrigation water derived
from surface sources may infiltrate into aquifers, removing 0.40 to 0.48 mm / yr of sea level equivalent, based on the same assumption as for seepage
from reservoirs.