Climate News from the science press

CapelDodger said:
"The hiatus of global warming in the Northern Hemisphere ..." didn't set off any alarms with you?
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Of course it set of an alarm: the "this looks like a good recent article for Ben's 'climate news in the science press' thread" alarm.

A word to the wise: don't cut-and-paste from the sub-ed's contribution. It will tend to reflect on you, and nobody with experience of subs would wish that on themselves.
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Excellent advice for the majority of posts in this thread! thank yew!
 
BenBurch said:
That was the idea. A repository for stories.
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No problem just had a misunderstanding of the intent.

"...Please confine discussion to said articles or post some of your own..."
 
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:eye-poppi

Alarming Increase in Flow of Water Into Oceans Due to Global Warming, Accelerated Cycle of Evaporation, Precipitation

ScienceDaily (Oct. 4, 2010) — Freshwater is flowing into Earth's oceans in greater amounts every year, a team of researchers has found, thanks to more frequent and extreme storms linked to global warming. All told, 18 percent more water fed into the world's oceans from rivers and melting polar ice sheets in 2006 than in 1994, with an average annual rise of 1.5 percent.http://www.sciencedaily.com/releases/2010/10/101004151700.htm
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In their paper, they indicate a relative standard deviation on their "Global-ocean mass change" number of 1372%.

That is 1,044 cu. km/year +/- 14,328 cu. km/year.

:eye-poppi
 
Greatest warming is in the north, but biggest impact on life is in the tropics
October 6, 2010

In recent decades documented biological changes in the far Northern Hemisphere have been attributed to global warming, changes from species extinctions to shifting geographic ranges. Such changes were expected because warming has been fastest in the northern temperate zone and the Arctic.

But new research published in the Oct. 7 edition of Nature adds to growing evidence that, even though the temperature increase has been smaller in the tropics, the impact of warming on life could be much greater there than in colder climates..
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http://www.physorg.com/news205590491.html
 
Volcano Fuels Massive Phytoplankton Bloom

"Advocates for seeding regions of the ocean with iron to combat global warming should be interested in a new study published October 6 in Geophysical Research Letters. A Canada-US team led by University of Victoria oceanographer Dr. Roberta Hamme describes how the 2008 eruption of the Kasatochi volcano in the Aleutian Islands spewed iron-laden ash over a large swath of the North Pacific. The result, says Hamme, was an "ocean productivity event of unprecedented magnitude" -- the largest phytoplankton bloom detected in the region since ocean surface measurements by satellite began in 1997.

...

But although the volcanic ash fueled such a massive phytoplankton bloom, it resulted in only a "modest" uptake of atmospheric CO2, says Hamme. "The event acts as an example of the necessary scale that purposeful iron fertilizations would need to be to have an impact on global atmospheric CO2 levels."
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When you can talk intelligently about climate as occurs on Real Climate then let us know. :garfield:
It's an article by someone who actually knows what they are talking about.
Now do you have something cogent about climate news?
 
Greatest warming is in the north, but biggest impact on life is in the tropics

http://pda.physorg.com/temperature-warming-tropics_news205590491.html

In recent decades documented biological changes in the far Northern Hemisphere have been attributed to global warming, changes from species extinctions to shifting geographic ranges. Such changes were expected because warming has been fastest in the northern temperate zone and the Arctic.

But new research published in the Oct. 7 edition of Nature adds to growing evidence that, even though the temperature increase has been smaller in the tropics, the impact of warming on life could be much greater there than in colder climates.

<SNIP>
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Wangler said:
Volcano Fuels Massive Phytoplankton Bloom
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"Advocates for seeding regions of the ocean with iron to combat global warming should be interested in a new study published October 6 in Geophysical Research Letters."
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So they should, but no more than the results of targeted experiments.

"... the 2008 eruption of the Kasatochi volcano in the Aleutian Islands spewed iron-laden ash over a large swath of the North Pacific."
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Iron-laden no doubt, but laden with what else as well? Volcanic soils are known for their fertility, which explains why so many people live near to them.

"The result, says Hamme, was an "ocean productivity event of unprecedented magnitude" -- the largest phytoplankton bloom detected in the region since ocean surface measurements by satellite began in 1997."
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How precedented was Kasatochi 2008 in the region since 1997?

Even ScienceDaily covers non-stories.
 
Hydrothermal Vents May Contribute More to Oceans' Thermal Budget

New Deep-Sea Hot Springs Discovered in Atlantic: Hydrothermal Vents May Contribute More to Oceans' Thermal Budget

"Our results indicate that many more of these small active sites exist along the Mid-Atlantic Ridge than previously assumed," said Dr. Nicole Dubilier, the chief scientist of the expedition. "This could change our understanding of the contribution of hydrothermal activity to the thermal budget of the oceans."
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Even if the hydrothermal contribution to the ocean energy budget was increased significantly, I can't see it having too much effect on the oceanic energy budget.

Also,

"One of the questions that the team would like to answer is why the hydrothermal sources in this area emit so much methane -- a very potent greenhouse gas," says chief scientist Nicole Dubilier...."
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If you can understand German, the original source is here.
 
Water cycle goes bust as the world gets warmer

* 18:00 10 October 2010 by Michael Marshall
* For similar stories, visit the Climate Change Topic Guide

Earth's water cycle has been pushed to its limit. The amount of water evaporating off the land and into the atmosphere hit a maximum 12 years ago and is now in decline, new calculations show.
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http://www.newscientist.com/article/dn19565-water-cycle-goes-bust-as-the-world-gets-warmer.html

Hydrology is leading edge of climate change and is here right now
 
Carbon Dioxide Controls Earth's Temperature, New Modeling Study Shows

http://www.sciencedaily.com/releases/2010/10/101014171146.htm

ScienceDaily (Oct. 14, 2010) — Water vapor and clouds are the major contributors to Earth's greenhouse effect, but a new atmosphere-ocean climate modeling study shows that the planet's temperature ultimately depends on the atmospheric level of carbon dioxide.

The study, conducted by Andrew Lacis and colleagues at NASA's Goddard Institute for Space Studies (GISS) in New York, examined the nature of Earth's greenhouse effect and clarified the role that greenhouse gases and clouds play in absorbing outgoing infrared radiation. Notably, the team identified non-condensing greenhouse gases -- such as carbon dioxide, methane, nitrous oxide, ozone, and chlorofluorocarbons -- as providing the core support for the terrestrial greenhouse effect.

Without non-condensing greenhouse gases, water vapor and clouds would be unable to provide the feedback mechanisms that amplify the greenhouse effect. The study's results are published Oct. 15 in Science.

<SNIP>
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