What's in our wastewater?

 

A toxic cocktail rushes through the veins of cities: our wastewater. But this stinky liquid mix also contains useful information. Now, scientists are measuring the wastewater of Berlin and Paris on an unprecedented scale.

Toxic chemicals - A menace to bees and farmland

Modern agriculture is designed to produce high yields. But it also depletes the soil. How do over-fertilization and pesticides impact the environment and humans? Are we poisoning our world and driving species to extinction?