Energy and environment

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Bat in hand.

How bats survive Norwegian winter nights

Bats hunt at night, navigating in the dark using echolocation to find insects and other food. During the winter, bats in Norway have to manage as best they can by hibernating, but until now, not much has been known about how they do this.

W. Ludwig Kuhn

Ultrasound can save fish in hydropower rivers

Shooting sound waves through water can remove dissolved gas that results from hydropower production in rivers. This gas can harm fish. Researchers are now ready to test techniques to reduce the risk in real hydropower plants.

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Why we need biofuels

Necessary reductions in greenhouse gases will be achieved too late if we have to wait for all our aircraft, ships and trains to transition from fossil fuels. This is why we need biofuels – in spite of the criticisms levelled at their use in a recent article published on the opinions website ‘NRK Ytring’. Biofuels are no ‘climate change mitigation ruse’, as these authors would have you believe.

second hand clothes

Second-hand clothing is good, but less is best

Norway will reap major environmental benefits if residents stop sending wearable clothes out of the country, according to a recent study on clothing consumption in Norwegian households.

Seabed mining

Norway will be the first in the world to approve seabed mining. Is it a good idea?

The transition to a greener, renewable economy will require large amounts of minerals, and society has to get them from somewhere. Norwegian politicians have reached an agreement approving deep sea mining, in a proposal that has reaped both cheers and frustration from scientists and activists alike. Here’s what our scientists think.

NOTES

Extracting valuable minerals in Norway

Today, products that utilise rare materials are for the most part manufactured in China. However, the EU has recently decided to boost its raw materials supply security. Researchers and the minerals industry are now looking to Norway.

Climate talks and the way forward

What should power the future’s shipping fleets? How can we change the way we build buildings so that they’re truly climate neutral? If we’re going to actively alter the planet’s climate, how should we study this?