Who says pollution clean-up has to pay for itself?

In a world searching for more sustainable ways to manage waste, the promise of turning "trash into treasure" is hard to ignore. Take nitrate pollution, for example. Every year, nitrogen fertilizers help feed billions of people. But not all of that nitrogen stays where it is neede This story matters for Science & Discovery readers tracking certification. Reported by phys.org. Read the full original at the source link below.