Sci Show: One-third of large rivers in the United States have changed colour over the past 35 years. Some US waterways have become greener and others yellower, providing clues to ecosystem health.

Sunday, December 20, 2020

One-third of large rivers in the United States have changed colour over the past 35 years. Some US waterways have become greener and others yellower, providing clues to ecosystem health.

https://ift.tt/3mCqyG4 via /r/science https://ift.tt/37xnXJ5

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