In 2003 I posted about the phenomenon of Global Dimming in which less light was reaching the Earth. It appears that this phenomenon reversed in the last decade.
Earth Has Become Brighter, but No One Is Sure Why - New York TimesReversing a decades-long trend toward “global dimming,” Earth’s surface has become brighter since 1990, scientists are reporting today.
The brightening means that more sunlight - and thus more heat - is reaching the ground. That could partly explain the record-high global temperatures reported in the late 1990’s, and it could accelerate the planet’s warming trend.
“We see the dimming is no longer there,” said Dr. Martin Wild, a climatologist at the Swiss Federal Institute of Technology in Zurich and the lead author of one of three papers analyzing sunlight that appear in today’s issue of the journal Science. “If anything, there is a brightening.”
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