• And now the Arctic's upper layers are getting less dense, for several reasons: melting Arctic glaciers, rising surface-water temperatures, increased precipitation and an absence of salt concentrations resulting from sea-ice formation.

    ECONOMIST: The science

  • It provides an outstanding example of the interaction of marine and terrestrial ecosystems as well as extraordinary ecosystem productivity, largely influenced by the formation of seasonal sea ice at the lowest latitude in the northern hemisphere.

    UNESCO: Culture

  • One way to increase the probability of rain is to seed the formation not of water droplets, but of ice crystals, an important step in precipitation.

    ECONOMIST: Aerobiology

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