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Related News:

  • Tropical upper atmosphere 'fingerprint' of global warming 05/22/2013
    The winds of the quasibiennial oscillation in the tropical upper atmosphere have greatly weakened at some altitudes over the last six decades, according to a new study. The finding is consistent with computer model projections of how the upper atmosphere responds to global warming induced by increased greenhouse gas concentrations.

  • Scientists investigate release of bromine in polar regions 04/26/2013
    Researchers have employed a novel measurement device for new studies in Alaska.

  • Ancient Earth crust stored in deep mantle 04/24/2013
    Scientists have long believed that lava erupted from certain oceanic volcanoes contains materials from the early Earth's crust. But decisive evidence for this phenomenon has proven elusive. New research now demonstrates that oceanic volcanic rocks contain samples of recycled crust dating back to the Archean era 2.5 billion years ago.

  • Sunlit snow triggers atmospheric cleaning, ozone depletion in the Arctic 04/24/2013
    Researchers have discovered that sunlit snow is the major source of atmospheric bromine in the Arctic, the key to unique chemical reactions that purge pollutants and destroy ozone.

  • Ozone masks plants volatiles, plant eating insects confused 04/02/2013
    Increases in ground-level ozone, especially in rural areas, may interfere not only with predator insects finding host plants, but also with pollinators finding flowers, according to new research.

  • Causes of 2011 Arctic ozone hole determined 03/11/2013
    A combination of extreme cold temperatures, human-made chemicals and a stagnant atmosphere were behind what became known as the Arctic ozone hole of 2011, a new study finds.

  • Ozone layer above North Pole expected to recover by end of century 03/11/2013
    Good news for the ozone layer above the Arctic. The Montreal Protocol is showing effects: according to recent measurements, the ozone layer over the North Pole should recover by the end of the century.

  • Ground-level ozone falling faster than model predicted 03/11/2013
    While dangerous ozone levels have fallen with reductions in emissions from vehicles and industry, a new study suggests a model widely used to predict the impact of remediation efforts has been too conservative.