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Water science news, explainers, and statistics covering freshwater, hydrology, lakes, rivers, groundwater, ice, and Earth’s connected water systems.

Vibrant underwater scene capturing a school of fish with divers exploring a coral reef habitat

Oceans News

South Korea designed a six-step psychological screen for people expected to live underwater, from excluding high-risk applicants to selecting the strongest fit

Six stages could help mission planners choose aquanauts who are physically ready for underwater life and psychologically prepared for long periods in a sealed habitat. The proposed process first identifies serious health risks, then looks for people with the personal qualities needed to live and work with a small crew. A peer-reviewed study published in…

People wading through dangerous moving water

Water Explainer

Seventy-six adults stood in six moving-water conditions and deeper flows felt faster than they were, while past storms changed how people judged the danger

From above of clear turquoise water with sharp border with water with algal bloom near sandy coastline in sunny day

Water Explainer

One hundred seventy-two students viewed identical lake photographs with clean water or harmful algal blooms and although they felt disgust worry and panic their cortisol did not rise

Concept of human intelligence with human brain on black background

Oceans Explainer

Eighteen expert saturation divers descended to a simulated 440 meters and became slower plus less accurate when conflicting numbers tested their attention at 45 atmospheres

Serene foggy beach scene on the Oregon coast with sea stacks and nearby coastal homes

Oceans Explainer

A 30-second message telling Oregon beach visitors they could help move other people to act raised climate-action intent in a 2,414-person field experiment, while warnings about ocean acidification and appeals to coastal attachment produced no detectable lift and did not change the final sticker choice meant to mimic real-world follow-through

Drone shot over a vibrant mangrove forest with a wooden boardwalk and gazebo in Thailand

Oceans Explainer

Marine reserve trips left 228 tourists with two distinct paths toward conservation, as awe tracked the easier promises to recycle and save resources while nature connection aligned more strongly with donating, volunteering and asking others to stop harming the coast

Plastic waste and litter scattered on a sandy beach, highlighting environmental pollution issues

Oceans Explainer

Across 138 volunteers, as few as 10 to 21 litter items on a beach scene were enough to lower calm, happiness and the sense of restoration people expected from the coast and the sharpest drop came when the mess looked like careless public behavior instead of working gear from fishing

An aerial view of a structure overwhelmed by a river flood in Bern, Switzerland

Water Explainer

Seventy-six volunteers stood through six moving-water tests and the people with more storm experience judged the current more accurately while deeper, faster water still pushed risk upward around their bodies

Seventy-six young adults stepped into a water flume, faced six combinations of depth and speed and then had to answer two simple questions: how fast is this water moving and how dangerous does it feel? The study found that most people overestimated water speed, especially as the current got faster or deeper. It also found…

Water Statistics

Seven hundred seventeen Scottish open-water swimmers said mental wellbeing outranked physical gains in every surveyed age group except over 65 and a national study found that lake swimmers were also more likely than sea or river swimmers to worry about environmental damage

Open water swimming has gained a reputation as a tough outdoor habit, yet a national Scottish survey suggests many swimmers value it most for how it affects the mind. In a 2023 study in PLOS ONE, researchers analyzed answers from 717 swimmers and found that mental wellbeing was the most important self-reported benefit in every…

Oceans Explainer

College students who scored higher on ocean literacy in a survey of 1,206 students were more likely to report stronger pro-environmental behavior and the main psychological bridge ran through a growing sense of marine responsibility while personal values added a second path from knowledge to action

A survey linked ocean knowledge with everyday environmental behavior A Frontiers in Psychology study asked 1,206 university students how much they knew about the ocean, how strongly they felt a duty to protect it, what values they attached to marine life and how often they reported pro-environmental behavior. Students with higher ocean literacy scores also…

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