cindre2000
New member
I know that global warming, or better said, Climate Change is a 'political' 'media-charged' topic that is quite the fire bug in this forum. But I was wondering if much has been said/debated about ocean acidification?
Ocean Acidification
- Thread starter cindre2000
- Start date
Ocean acidification is, more or less, is the same category as climate change, and is directly connected to it in that acidification is largely a result of excessive amounts of CO2 in the atmosphere, and ultimately in the water. Decades ago it was noticed that lots of lakes in upstate New York and New England had become too acidic to sustain fish life because CO2 and other contaminents emitted from midwestern coal fired power plants was entering the upper atmosphere and causing acid rain to fall further east because of prevailing winds. The same phenomenon is happening on a global scale, with CO2 from human activity, fossil fuels, burning forests, etc., creating an increasingly acidic oceanic environment.
Say Bye-Bye.
Say Bye-Bye.
ctenophors rule
New member
i have always had a pet peeve about the term climate change. climate is aloways changing. global warming is a form of climate change. so isn't global warming the better term? (im leaving out political views here, please do the same)
ctenophors rule
New member
also their is a wonderful article (where some of the graphs in the article posted by bill were made, by victoria fabre ...i think.. anyway i cant find it anymore, but if anyone has it and can post a link its premise is ocean acidification,
andrewk529
New member
http://www.worldwildlife.org/what/wherewework/coraltriangle/WWFBinaryitem12250.pdf
this is scientific study from the university of queensland, all common knowledge in the academic fields. unfortunately certain populations are unable to grasp major concepts. the situation is very bleek although i personally feel its probably already far past the point of no return with our oceans.
this is scientific study from the university of queensland, all common knowledge in the academic fields. unfortunately certain populations are unable to grasp major concepts. the situation is very bleek although i personally feel its probably already far past the point of no return with our oceans.
Megalodon
Clowning Around
:thumbdown
Science 20 November 2009:
Vol. 326. no. 5956, pp. 1098 - 1100
DOI: 10.1126/science.1174190
Aragonite Undersaturation in the Arctic Ocean: Effects of Ocean Acidification and Sea Ice Melt
Michiyo Yamamoto-Kawai,1,* Fiona A. McLaughlin,1 Eddy C. Carmack,1 Shigeto Nishino,2 Koji Shimada2,3
Abstract:
The increase in anthropogenic carbon dioxide emissions and attendant increase in ocean acidification and sea ice melt act together to decrease the saturation state of calcium carbonate in the Canada Basin of the Arctic Ocean. In 2008, surface waters were undersaturated with respect to aragonite, a relatively soluble form of calcium carbonate found in plankton and invertebrates. Undersaturation was found to be a direct consequence of the recent extensive melting of sea ice in the Canada Basin. In addition, the retreat of the ice edge well past the shelf-break has produced conditions favorable to enhanced upwelling of subsurface, aragonite-undersaturated water onto the Arctic continental shelf. Undersaturation will affect both planktonic and benthic calcifying biota and therefore the composition of the Arctic ecosystem.
1 Department of Fisheries and Oceans, Institute of Ocean Sciences, 9860 West Saanich Road, Sidney, British Columbia V8L 4B2, Canada.
2 Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima, Yokosuka, Kanagawa 237-0061, Japan.
3 Tokyo University of Marine Science and Technology, 4-5-7, Konan, Minato-ku, Tokyo 108-8477, Japan
http://www.sciencemag.org/cgi/conte...FIRSTINDEX=0&sortspec=date&resourcetype=HWCIT
Science 20 November 2009:
Vol. 326. no. 5956, pp. 1098 - 1100
DOI: 10.1126/science.1174190
Aragonite Undersaturation in the Arctic Ocean: Effects of Ocean Acidification and Sea Ice Melt
Michiyo Yamamoto-Kawai,1,* Fiona A. McLaughlin,1 Eddy C. Carmack,1 Shigeto Nishino,2 Koji Shimada2,3
Abstract:
The increase in anthropogenic carbon dioxide emissions and attendant increase in ocean acidification and sea ice melt act together to decrease the saturation state of calcium carbonate in the Canada Basin of the Arctic Ocean. In 2008, surface waters were undersaturated with respect to aragonite, a relatively soluble form of calcium carbonate found in plankton and invertebrates. Undersaturation was found to be a direct consequence of the recent extensive melting of sea ice in the Canada Basin. In addition, the retreat of the ice edge well past the shelf-break has produced conditions favorable to enhanced upwelling of subsurface, aragonite-undersaturated water onto the Arctic continental shelf. Undersaturation will affect both planktonic and benthic calcifying biota and therefore the composition of the Arctic ecosystem.
1 Department of Fisheries and Oceans, Institute of Ocean Sciences, 9860 West Saanich Road, Sidney, British Columbia V8L 4B2, Canada.
2 Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima, Yokosuka, Kanagawa 237-0061, Japan.
3 Tokyo University of Marine Science and Technology, 4-5-7, Konan, Minato-ku, Tokyo 108-8477, Japan
http://www.sciencemag.org/cgi/conte...FIRSTINDEX=0&sortspec=date&resourcetype=HWCIT
modest simplification
modest simplification
Current research indicates that the oceans are becoming more acidic. Just as low alkalinity affects the growth of corals in an aquarium by preventing the deposition of calcium, the substance of which coral skeletons are made, decreasing alkalinity (the same as increasing acidity) in the oceans does the same thing. Corals cannot grow, and the calcium based reefs will slowly dissolve. For eons the oceans have been the major limiting factor for the amount of CO2 in the atmosphere. Most naturally occuring CO2 is absorbed by the seas. Current research indicates that the seas have reached their carrying capacity for CO2 while maintaining normal oceanic levels of alkalinity. The CO2 continues to be absorbed by the oceans, but the buffering capacity is declining, so the oceans are becoming more acidic. Increases in human produced CO2 over the past century are pushing down the Ph of the oceans toward acidity. This should be of particular interest to reef enthusiasts, because it means the end of the oceans ability to provide an environment in which corals (and many other life forms) can survive. The CO2 levels are, of course, responsible for climate change, so we are witnessing (and causing) a linked two-prong assault on the planet as we know it.
modest simplification
Current research indicates that the oceans are becoming more acidic. Just as low alkalinity affects the growth of corals in an aquarium by preventing the deposition of calcium, the substance of which coral skeletons are made, decreasing alkalinity (the same as increasing acidity) in the oceans does the same thing. Corals cannot grow, and the calcium based reefs will slowly dissolve. For eons the oceans have been the major limiting factor for the amount of CO2 in the atmosphere. Most naturally occuring CO2 is absorbed by the seas. Current research indicates that the seas have reached their carrying capacity for CO2 while maintaining normal oceanic levels of alkalinity. The CO2 continues to be absorbed by the oceans, but the buffering capacity is declining, so the oceans are becoming more acidic. Increases in human produced CO2 over the past century are pushing down the Ph of the oceans toward acidity. This should be of particular interest to reef enthusiasts, because it means the end of the oceans ability to provide an environment in which corals (and many other life forms) can survive. The CO2 levels are, of course, responsible for climate change, so we are witnessing (and causing) a linked two-prong assault on the planet as we know it.
