University of Birmingham. "Our water cycle diagrams give a false sense of water security." ScienceDaily. ScienceDaily, 10 June 2019. <www.sciencedaily.com / releases / 2019 / 06 / 190610111525.htm>.

Representations of the Earth’s water cycle used in textbooks throughout the world need to be updated, say scientists who have drawn up a new set of diagrams to include effects of human interference.

It's hard to find a diagram of the carbon or nitrogen cycle that doesn't show factories and fertilizers. However, our drawings of the water cycle are stuck in the 17th century." ...