Come spring, one of those fish heads will go into the ground under each of my tomato plants. While that may feel deeply off-putting, consider that a whole lot of the fertilizer you buy is fish ...

Aquaponics is a combination of hydroponics and aquaculture. It involves farming fish waste and supplying it to plants as a ...

Outdated pollution-control technology standards meant that, for example, 81 oil refineries across ... Twenty-one nitrogen fertilizer plants discharged 7.7 million pounds of total nitrogen, which ...