The projected loss of water storage on land as global temperatures rise is especially alarming in the Southern Hemisphere – and in parts of the US.
A recent US study found tyre chemicals were polluting rivers and poisoning migratory salmon.
Flooding isn't always destructive – it can be part of our toolkit for restoring ecosystems.
To continue to sustain or grow populations — and economies — more is going to have to be done with the same amount of water, or even less.
The ghosts of our industrial and agricultural past continue to haunt freshwater ecosystems today.
New regulations will allow oilsands companies to release 1.3 trillion litres of liquid waste into the Athabasca River in 2022. A new technology could clean the wastewater before it's let go.
A long-awaited NZ$700 million package to clean up New Zealand's rivers and lakes has disappointed some of the government's expert advisers – especially a delay on setting clear pollution limits.
Population growth and attendant human activities are destroying a freshwater ecosystem.
Hundreds of thousands of lakes, rivers and streams in the Arctic exist only because of the permafrost that lies beneath them. The warming Arctic threatens to change that.
The Great Lakes contain reservoirs of legacy contaminants, mostly in their sediments, that are vulnerable to resuspension.
The salt in the sea has built up over billions of years – but it wouldn't have got there without freshwater rivers and streams.
Entire populations of prawn 'super-females' are now being commercially distributed. The science behind this continues to advance and could have a far-reaching impact on both humans and animals.
Good news – underground aquifers could be a reliable source of drinking water in sub-Saharan Africa even as the climate warms.
The brain-eating amoeba _Naegleria fowleri_ kills 97% of its victims, and infections are almost impossible to diagnose quickly. Here is how it kills.
Freshwater fish are suffering as drought becomes more common and severe. Whether they survive will depend on how governments manage rivers and lakes, and on taking action against climate change.
Populations of freshwater species are in a state of deep decline. But we know why and we can reverse the trend.
The Murray-Darling Basin Plan has been politically fraught and mired in scandal. But environmental monitoring suggests that the health of the rivers is indeed improving – even if it will take decades.
Ocean plastic has gained notoriety, but we're starting to realize that microplastics pollute our freshwater and terrestrial ecosystems too.
Recent research shows that US rivers are becoming saltier and more alkaline. Salt pollution threatens drinking water supplies and freshwater ecosystems, but there is no broad system for regulating it.
The ecological health of New Zealand's lowland rivers and lakes is in decline, but principles borrowed from drinking water safety could help reverse the degradation.