Worst CO2 Emissions: Roads, Air Travel, or Sea Shipping?

We may be looking at a future in which shipping-perhaps even sailing vessels-may make a big comeback. If so-hopefully people won’t clearcut forests in order to do that.

ASW
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“Today’s global road emissions have a strong and long-lasting effect on climate.”

“….for aviation there is a strong short-term warming by aviation-induced contrails and cirrus clouds…. climate effects that decrease relatively quickly over time”

“Current shipping emissions differ from emissions from the road and aviation sectors by having a cooling effect on climate that lasts  30-70 years. This cooling effect results from the very high emissions of SO2 and NOx. However, the warming effect will dominate in the long term because shipping also emits significant amounts of CO2.”

See:
<http://www.sciencedaily.com/releases/2008/11/081121081355.htm>

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PDF Available: WWF Update on Climate Risk

I have the WWF full report as pdf file. Please feel free to ask.
Lance

“Lance Olsen” <lance@wildrockies.org>
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“…early signs of change suggest that the less than 1°C of global warming
that the world has experienced to date may have already triggered the first
tipping point of the Earth’s climate system”

“The reality of 2008 tells us that climate change is causing dangerous
anthropogenic interference at lower thresholds and earlier than expected..”
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WWF
A CLOSING WINDOW OF OPPORTUNITY –
GLOBAL GREENHOUSE REALITY 2008
By Dr. Martin Sommerkorn, WWF International
Arctic Programme, msommerkorn@wwf.no

Summary

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2008 Hurricane Season a Record-Breaker

on the net
The National Hurricane Center: www.nhc.noaa.gov/

WASHINGTON — The 2008 Atlantic hurricane season, which ends Sunday, seemed to strike the United States and Cuba as if on redial, setting at least five weather records for persistence and repeatedly striking the same areas.

“It was pretty relentless in a large number of big strikes,” said Georgia Tech atmospheric sciences professor Judith Curry. “We just didn’t have the huge monster where a lot of people lost their lives, but we had a lot of damage, a lot of damage.”

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