Soot worse for global warming than thought
Soot particles may be twice as bad as the greenhouse gas carbon dioxide in contributing to global warming, suggests a new study.
Grains of soot deposited in snow have also caused about one-quarter of the observed rise in global surface temperature since 1880, suggests the model by James Hansen and Larissa Nazarenko. The pair examined how soot particles affect the atmosphere when they darken snow and ice.
Darkened snow traps more solar energy than pristine snow. The effect could explain why sea ice and glaciers are melting faster than expected from the increase in surface temperature alone, says Hansen of the NASA Goddard Institute for Space Studies in New York.
“The effect of soot on snow is unambiguous,” he told New Scientist. “It causes a strong warming effect.”
Disrupting the Borg is expensive and time consuming!
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This was obviously a different Hames Hansen.
It was actually James Jansen ;^)
There certainly be more than one Hames Hansen.
¼ of the rise from soot, ½ from the sun, 1/3 (or so) from water vapor, 1/8 from the Earth’s interior. That only leaves about 9/10 for Carbon dioxide, right?
How does someone so clueless find his way to work each morning? Models? If so, he sure as Hell did not design them.
So the Chinese soot is exempt somehow? Because that is apparently causing cooling..
Dust and soot frequently change properties to do the most possible harm to minorities, women and children – and particularly teenage girls like Rebecca Black.