And whether one is speaking of food or water, the point is that it isn't easily transferable. You can't just use less water so that someone in a third world country can have some. You can't just eat less or stop feeding your pets so that someone elsewhere can have food. The transportation is extremely expensive if not impossible. And you can't just allocate the money to feeding or watering people in a foreign land, because corruption will take all that money away before it reaches the intended recipients.