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Rivers of plastic

Exploring the challenges and opportunities

This article looks at the increase in water pollution caused by disposal of plastic, which is often an impact of rapid urbanisation. It also links to ideas about urban sustainability and the need to manage water resources.

A man rows along a heavily polluted stretch of the Citarum River in Indonesia

Plastic pollution is one of the biggest problems facing the world today. Around 275 million tonnes of plastic is generated each year around the world. Plastic takes a long time to biodegrade and can remain in the environment for hundreds of years. Many plastic items are designed to be used once and are then discarded, and much of today’s used plastic ends up in rivers, lakes and oceans.

The World Economic Forum estimates that around 8 million tonnes of plastic enters the ocean from rivers every year. This poses a danger to wildlife as animals can become trapped in plastic or can ingest microplastic particles, which may do even greater harm. If plastic pollution levels continue to rise, there may be more plastic than fish in the oceans by 2050.

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Previous

Mapping tectonic hazards

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Aiming for the top grades