Related topics: air pollution

China orders nationwide emission cuts by 2015

China on Tuesday ordered local governments to reduce emissions of "major pollutants" by as much as 10 percent by 2015, amid growing public anxiety over the country's bad air.

Satellite data improve aviation safety

(PhysOrg.com) -- Thousands of planes are grounded across Europe due to the spread of volcanic ash following the recent eruption under Iceland's Eyjafjallajoekull glacier. Volcanic eruptions eject large amounts of ash and ...

Have Venusian volcanoes been caught in the act?

(Phys.org)—Six years of observations by ESA's Venus Express have shown large changes in the sulphur dioxide content of the planet's atmosphere, and one intriguing possible explanation is volcanic eruptions.

Quantifying the impact of volcanic eruptions on climate

Large volcanic eruptions inject considerable amounts of sulphur in the stratosphere which, once converted into aerosols, block sun rays and tend to cool the surface of the Earth down for several years. An international team ...

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