Use oceanic water to grow crops, instead of the water from rivers.

According to figures from the institution of mechanical engineers 50% of all food produced ends up wasted every year. Liters and liters of water a are used in order to grow up crops and something's they don't get to our tables because it doesn't meet their standards, can be color, size. And other physical characteristics, . This works as small proof for what the amount of work is wasted in a day or two, imagine this you have a farm, you work hard in harvesting your vegetables or fruits, and it might not be able to reach people's tables at all, that's a lot of energy time and water wasted in nothing, because we end up not been able to it, my petition was to see if there was a way possible in which the fresh water can be keep more as a thing for animals or humans to consume.