Articles by Peter Bondo Christensen

  • A warmer Arctic causes fish to move

    The ice is melting away in the Arctic regions, while precipitation is on the increase. The fresh water forms a lid over essential nutrients in key areas of the Arctic Ocean, and that can change marine life dramatically.
  • The North Pole is on thin ice

    While the world’s political leaders have left the negotiating table again without an agreement to reduce greenhouse gases, the Arctic has greater problems than ever – 75 percent of the sea ice has disappeared.

Peter Bondo Christensen

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Today's selected stories

Scientists want to make liquid manure smell a bit better

Ammonia causes the disgusting smell of urine in liquid manure from pigs and cattle. Scientists are not far from finding a way of stopping the formation of ammonia, although, this will not entirely remove the smell.