The Secret Global Sewer System

The video discusses the dual role of water in agriculture, highlighting the need for irrigation and the problems caused by excess water. It explains how farmers use drainage systems to manage water levels, improving crop productivity but also causing environmental issues like pollution and wetland loss. Solutions to mitigate these problems include precise application of fertilizers and retrofitting drainage systems.

What are some strategies to mitigate the negative effects of agricultural drainage?

Discuss the impact of drainage on wetlands and the environment.