lakes

Freshwater browning explained: Why lakes are turning brown and fish populations are declining |

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Freshwater lakes across North America and Europe have been quietly changing colour for decades and not in a good way. A growing number of rivers, ponds, and lakes are turning a murky tea-brown shade, a phenomenon scientists call “freshwater browning.” To the untrained eye, this might not seem alarming. But a sweeping new study published … Read more

7 lakes created by meteor impacts around the world: From Lake Manicouagan to Clearwater Lakes |

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Across the planet, lakes are usually associated with glaciers, rivers, volcanic activity, or shifting tectonic landscapes. A much smaller group owes its existence to something far less common. At various points in Earth’s history, large objects from space have struck the surface with enough force to excavate vast depressions, some of which were later filled … Read more