A new research has suggested that particles of lead from gasoline exhaust may have offset warming in the 20th century, causing global cooling.
A new research has suggested that particles of lead from gasoline exhaust may have offset warming in the 20th century, causing global cooling.
It's well known that particles in the atmosphere such as mineral dust, pollen, heavy metals and even bacteria can act as seeds for the nucleation of ice crystals.
Global Cooling Caused by Volcanic Eruption in 1600
A new study has suggested that a volcanic eruption that happened in 1600 may have plunged the world into cold climate chaos.
A new study has suggested that a volcanic eruption that happened in 1600 may have plunged the world into cold climate chaos.
According to a report in New Scientist, Dan Cziczo and colleagues of the Pacific Northwest National Laboratory in Richland, Washington, created artificial clouds in the laboratory to explore the ice nucleation efficiency of various particles.
Over a third of the ice nuclei generated contained lead, suggesting it is a highly-efficient nucleator.
Sulphur Clouds Causes Cooling of Atmosphere
A new study by a team of German researchers from the University of Bremen has discovered that the sulphur exhaust from cargo ships produces a cooling effect on the atmosphere.
A new study by a team of German researchers from the University of Bremen has discovered that the sulphur exhaust from cargo ships produces a cooling effect on the atmosphere.
Cziczo argues that lead "supercharges" ice-nucleating dust particles in the atmosphere.
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Live Earth: How Global Warming Became Cool
Once embraced only by tree huggers but now by Madonna, Sting and other stars, global warming had a turbulent ride before being adopted as a celebrity campaign issue in Saturday's Live Earth concerts.
Once embraced only by tree huggers but now by Madonna, Sting and other stars, global warming had a turbulent ride before being adopted as a celebrity campaign issue in Saturday's Live Earth concerts.
"Before leaded fuel was phased out from road vehicles last century, the atmosphere contained substantially more leaded particulates than today," said Cziczo.
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Source-ANI
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