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  • What are the causes of water pollution? Discuss how you can contribute in reducing water pollution.

 What are the causes of water pollution? Discuss how you can contribute to reducing water pollution.

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It is sometimes caused by nature, such as when mercury filters from the Earth's crust, polluting oceans, rivers, lakes, canals and reservoirs. However, the most common cause of poor-quality water is human activity and its consequences such as:

  1. Global warming: Rising global temperatures caused by CO_{2} emissions heat the water, reducing its oxygen content.
  2. Deforestation: Felling forests can exhaust water resources and generate organic residue which becomes a breeding ground for harmful bacteria.
  3. Industry, agriculture and livestock farming: Chemical dumping from these sectors is one of the main causes of the eutrophication of water.
  4. Rubbish and faecal water dumping: 80\% of the world's sewage finds its way into seas and rivers untreated.
  5. Maritime traffic: Much of the plastic pollution in the ocean comes from fishing boats, tankers and cargo shipping.
     

We must prevent water pollution with measures like the following:

  1. prevent global warming and acidification of the oceans. Emissions to CO_{2} Reduce
  2. Reduce the use of chemical pesticides and nutrients on crops.
  3. Reduce and safely treat wastewater so that, as well as not polluting, it can be reused for irrigation and energy production.
  4. Restrict the use of single-use plastics that end up floating in rivers, lakes and oceans, many as microplastics.
  5. Encourage sustainable fishing to ensure the survival of species and avoid depletion of the seas.
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