Water Quality

Water quality refers to the physical, chemical and biological condition of freshwater and marine systems, including factors such as dissolved oxygen, temperature, salinity, nutrients, pollutants and microbial activity. Changes in water quality can affect aquatic ecosystems, biodiversity, drinking water resources, agriculture and human health, and are increasingly shaped by climate change, land use, industrial activity and water management.

Image: group of fish swimming in the water (s. ocean deoxygenation)
Aquatic deoxygenation threatens Earth system stabilityScience

Aquatic deoxygenation threatens Earth system stability

Scripps-led review calls for aquatic deoxygenation to be recognized as a critical planetary process under threat Summary: Declining oxygen concentrations in oceans and inland waters…
SourceSourceJuly 20, 2026 Full article
Image: a group of people swimming in a body of water
‘Excellent’ water at most European beaches, study saysNews

‘Excellent’ water at most European beaches, study says

Copenhagen, Denmark | AFP | Muser NewsDesk The vast majority of Europe's beaches offer "excellent" water quality for swimming, the EU environment agency said on Tuesday…
SourceSourceJune 16, 2026 Full article
Image: Polar bear at sunset on ice
Climate Science Digest: June 2, 2026Science

Climate Science Digest: June 2, 2026

Explore the latest insights from top science journals in the Muser Press roundup (June 2, 2026), featuring impactful research on climate change challenges. In brief:…
Muser NewsDeskMuser NewsDeskJune 2, 2026 Full article
Image: body of water surrounded by mountains
Climate warming is driving oxygen loss in rivers worldwideScience

Climate warming is driving oxygen loss in rivers worldwide

Nearly 79% of rivers analyzed worldwide showed declining oxygen levels between 1985 and 2023, with tropical river systems among the most vulnerable to climate-driven deoxygenation.…
SourceSourceMay 16, 2026 Full article
Image: people on a boat, waterway
People are altering decomposition rates in waterwaysScience

People are altering decomposition rates in waterways

Faster decomposition could exacerbate greenhouse gas emissions, threaten biodiversity Humans may be accelerating the rate at which organic matter decomposes in rivers and streams on…
SourceSourceMay 31, 2024 Full article
Image: Boy drinking water
The global clean water crisis looms largeClimate

The global clean water crisis looms large

Water scarcity will intensify with climate and socioeconomic change, disproportionately impacting populations located in the Global South. So concludes a new Utrecht University article published…
SourceSourceMay 23, 2024 Full article