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substanti8 Here's fresh research about another ominous positive feedback for global warming.
dx. doi. org/10.1126/science.1186151
Science | 5 February 2010
Vol. 327 | no. 5966 | pp. 654-655
Iron and the Carbon Pump
by William G. Sunda (Beaufort Laboratory, National Ocean Service, NOAA)
"The concentration of carbon dioxide (CO2) in Earth's atmosphere has risen by 38% since the start of the industrial era as a result of fossil fuel burning and land use changes; if current trends continue, it is ..." 3 days ago -
substanti8 "... projected to increase further by at least a factor of 2 by 2100. About a quarter of the CO2 emitted through human activities has been absorbed by the ocean. On page 676 of this issue, Shi et al. show that the resulting acidification of ocean surface waters may decrease the biological availability of iron, which could in turn reduce the ability of the ocean to take up CO2." 3 days ago
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substanti8 dx. doi. org/10.1126/science.1183517
Science | 5 February 2010
Vol. 327 | no. 5966 | pp. 676-679
Effect of Ocean Acidification on Iron Availability to Marine Phytoplankton
by Dalin Shi (Princeton University) and 3 others
ABSTRACT:
"The acidification caused by the dissolution of anthropogenic carbon dioxide in the ocean changes the chemistry and hence the bioavailability of iron (Fe), a limiting nutrient in large oceanic regions. Here, we show that the bioavailability of dissolved Fe ..." 3 days ago -
substanti8 "... may decline because of ocean acidification. Acidification of media containing various Fe compounds decreases the Fe uptake rate of diatoms and coccolithophores to an extent predicted by the changes in Fe chemistry. A slower Fe uptake ... is also seen in experiments with Atlantic surface water. The Fe requirement ... remains unchanged with increasing CO2. The ongoing acidification of seawater is likely to increase the Fe stress of phytoplankton populations in some areas of the ocean." 3 days ago
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sharkhearted1 Lisa Suatoni's use of the term "global warming" is rather vague. Did she mean CAGW (Catastrophic Anthropogenic Global Warming"?).
The juxtaposition of the terms "carbon dioxide" and "pollution" is a little politically correct (EPA).
And the real shame is that so very limited time was given to the REAL oceanic problems e.g. disastrous overfishing, large shark depletion, habitat destruction due to industrial fishing, coastal water pollution, etc.
Thumbs down. Watch Sharkwater instead. 5 days ago -
dandoub88 Comment removed
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substanti8 Thanks, myzaroth. It's all about a worldview that does not view nature as an expendable commodity. Even in the modern industrial world, at least 25 percent have reached that level of understanding.
For more ideas about the plight of our oceans, see the featured video on my channel.
Also watch Naomi Oreskes explain her investigation into the roots of the right-wing disinformation campaign:
watch?v=2T4UF_Rmlio 2 weeks ago - View all Comments »
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