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Articles on Runoff

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Water from the Mackenzie River, seen from a satellite, carries silt and nutrients from land to the Arctic Ocean. Jesse Allen/NASA Earth Observatory

Arctic rivers face big changes with a warming climate, permafrost thaw and an accelerating water cycle − the effects will have global consequences

A new study shows how thawing permafrost and intensifying storms will change how water moves into and through Arctic rivers.
The cut flowers could pay for themselves and even turn a profit. Margi Rentis

Flowers grown floating on polluted waterways can help clean up nutrient runoff and turn a profit

Phosphorus and nitrogen contribute to water pollution and cause harmful algal blooms. New research shows how mats of floating flower beds can take advantage of these nutrients while cleaning the water.
Following historic drought in 2021, reservoir levels dropped down in the Hoover Dam on the Colorado River, which gets its waters from the melting snowpack from the Rocky Mountains of Colorado and Wyoming. (pxhere.com)

Scientists dig deep and find a way to accurately predict snowmelt after droughts

Unprecedented droughts leave the subsurface drier than usual, affecting water supply in subsequent years.
Muddy water from debris flows like those in the Macalister catchment (West Gippsland, February 2007) can disrupt a region’s drinking water supply for years. Photo: Adrian Murphy (Melbourne Water)

Freak mud flows threaten our water supplies, and climate change is raising the risk

Australia’s water supplies are at risk as climate extremes provoke erosion events that threaten lakes and dams.
Land clearing rates in Queensland tripled since 2010. Martin Taylor

Queensland land clearing is undermining Australia’s environmental progress

Land clearing in Queensland has tripled in the past five years.
Nitrogen pollution is one of the factors driving outbreaks of crown-of-thorns - giant starfish that devour the reef. Kenneth Taylor Jr/Flickr

High-tech fertilisers and innovation have to come to the Great Barrier Reef’s rescue

The latest Great Barrier Reef report shows some improvements to water quality over the past five years, but there’s still a lot to do on one particular problem: nitrogen.

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