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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.

Is there a new deep-sea fishery on the horizon?

Well, some researchers believe this is possible. Species living at depths between 200 and 1000 metres may be very valuable. However, harvesting them isn’t as easy as it might sound because, when taken on board, valuable catches change rapidly from pure gold to ashes.

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.