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Tag: water

Browner, but better water in Norwegian lakes

The water flowing through Norwegian Lakes has improved in quality and gotten less polluted over the last 25 years. But at the same time, it’s gotten a lot browner. This has a natural explanation.

Water containing ozone disinfects hands as well as hand sanitizer

Water that contained ozone removed bacteria from hands as well as an alcohol-based disinfectant.

Make room for more water in the cities

Excessive precipitation and rising sea levels can spell trouble for cities. We should reboot our thinking about water and consider more use of runoffs, according to Norwegian scientists.

Missing link found on sharks

On any visit to a rocky seashore, you are likely to spot barnacles, unoffendingly stuck to hard surfaces. But barnacles in a fjord in Norway have become parasites that eat fish through feeding stems.

Fish choose a collision course

Flying insects steer away from objects to avoid collisions, but fish swim toward them at full speed.

More heavy rains in the future

Increasingly powerful cloudbursts can wreak havoc in cities. Better measurements and climate models can help urban planners protect cities from wetter, wilder weather.

Why do we brush our teeth in cold water?

We wash dishes, clothes and our bodies in warm water – yet we turn the tap to cold when it comes to our teeth. Why?

Not more conflicts where rivers draw the line

Having a river as the border between two countries might seem like a recipe for conflict, with quarrels over water resources and territory. But border rivers are not troubled waters, according to new research.

Can water spoil?

A half-full bottle of water has been left in the fridge for months. Can we drink it?