Articles on Freshwater

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Brazil’s Marajó Archipelago on the Amazon river delta is the world’s largest tidal island. Roughly the size of Switzerland, its rich biodiversity and landscapes combine Amazon rainforest, mangroves, and freshwater. Dado Photos/Shutterstock

Why safe water is still lacking in the Marajó Archipelago, one of the world’s most water‑abundant regions

Brazil holds 12% of the world’s freshwater reserves and yet growing water insecurity reveals some of the country’s deepest sanitation inequalities, which are particularly relevant to Marajó, its largest coastal island.
A large rock glacier fills a valley in Grand Teton National Park in Wyoming. Google Earth: Google, Airbus, Landsat, Copernicus

You’ve never heard of these glaciers, but they’re becoming critical climate havens as America’s iconic mountain glaciers and their water fade

They’re called rock glaciers, and they might not look like much, but they’ll continue to provide meltwater after the world’s iconic white glaciers are gone.
Weirs and dams act as barriers within river ecosystems – removing them affects how aquatic wildlife and invasive species move. Bardhok Ndoji/Shutterstock

River wildlife moves freely once dams are removed – but so too can invasive species

The natural connectivity of rivers acts like a highway, helping invasive species spread rapidly throughout a catchment.
A woman kayaks near Pigeon Lake in central Ontario in 2021. Canada is rich in natural resources and freshwater, but those resources aren’t infinite. THE CANADIAN PRESS/Fred Thornhill

‘Elbows up’ in Canada means sustainable resource development

Accelerated resource development in Canada should not burden future generations with environmental destruction.

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