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Dog in garden receiving flea treatment on the back of the neck

Flea-treatments and sheep-dips at damaging levels in Welsh rivers

11 March 2026

Chemicals used in veterinary flea-treatments and sheep-dips are potentially harming wildlife in Welsh rivers.

hand removing wet wipe from packet

Biodegradable wet wipes remain in rivers for more than five weeks

15 December 2025

Scientists show for the first time that most biodegradable wet wipes aren’t as biodegradable as their marketing claims.

Leaping salmon at Murray's Cauld, Philiphaugh by Walter Baxter, CC BY-SA 2.0 <https://creativecommons.org/licenses/by-sa/2.0>, via Wikimedia Commons

Almost 75,000 farmed salmon in Scotland escape after Storm Amy

21 October 2025

The scale of the escape has serious implications for wild Atlantic salmon, which are now classified as “endangered” in Great Britain.

A panoramic aerial view photograph of rainfall over the San Juan River Goosenecks in Utah.

Scientists train AI to predict river flow across entire US to aid extreme weather and climate impact preparation

14 October 2025

New method outperforms several existing hydrologic models and is easier to understand

Tiaisenkoski river

Salmon conform to beauty standards, but only if they live a natural life

12 August 2025

New study finds that salmon reared in captivity are more asymmetrical when compared to those that get to live their life in the wild, suggesting that captive fish are experiencing more environmental stress.

We've found a way to help endangered eels overcome dams and weirs

16 July 2025

New research has found a simple yet innovative way to help eels get past obstructions: textured tiles.

Hand pulling wet wipe out of the packet

Scientists calculate how many wet wipes enter UK waters per person

19 June 2025

Cardiff University scientists develop the first comprehensive model to calculate wet wipe emissions to rivers.

Warmer samples for a cooler world

4 February 2025

By storing wastewater samples at higher temperatures, laboratories can substantially decrease the amount of energy they use, and thus reduce their carbon emissions, without significantly compromising sample integrity.

New study reveals where condition of rivers has declined since 1990

13 December 2024

Despite widespread improvements in river health between 1991 and 2019, researchers discover worrying signs for some of the most biologically diverse rivers.

Aerial photograph of the River Wye surrounded by farmland.

Focus on phosphate not a “silver-bullet” for River Wye’s water quality problems, report finds

5 September 2024

Study calls for holistic approach to stop river’s decline