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Old 07-04-2015, 10:24 AM
 
29,538 posts, read 19,632,331 times
Reputation: 4550

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Quote:
Originally Posted by sanspeur View Post
People in the know agree that it is not my opinion, but fact.




Not if it's done right, and the hardship on families, and indeed even entire countries will be far greater if we continue down the same path. Mankind has dug a hole and just keeps on digging....Not very bright.

Writing in Science, experts say the oceans are heating, losing oxygen and becoming more acidic because of CO2.
They warn that the 2C maximum temperature rise for climate change agreed by governments will not prevent dramatic impacts on ocean systems.
And they say the range of options is dwindling as the cost of those options is skyrocketing.
CO2 emissions threaten ocean crisis - BBC News


The oceans are tremendously important... Marine sources provide about 20% of the animal protein eaten by humans. Another 5% is provided indirectly via livestock fed with fish.
60% of fish consumption is by the developing world. STATUS OF THE WORLD'S FISHERIES


There are still many unknowns




https://www.youtube.com/watch?v=lft4OHt0-gE


Last time Co2 levels were this high 3.5 million years ago, the earth was 3C warmer, wetter, more lush with less tundra, and deserts than there are today (sea level was also 25meters higher)





http://www.roceeh.net/fileadmin/down...s/Salzmann.pdf

Last edited by chicagogeorge; 07-04-2015 at 10:36 AM..

 
Old 07-04-2015, 01:17 PM
 
Location: Victoria, BC.
33,548 posts, read 37,151,051 times
Reputation: 14001
Since I began commercial fishing in 1979 I have already seen many changes. Diminishing salmon runs, and other species are moving farther north, and warm water species like the Humbolt squid, tuna and ocean sunfish are becoming more common on the BC coast....Since the late 90s most fishing activity is taking place on the north coast, just south of the Alaska border

Warming and acidification of surface ocean waters will increase proportionately with cumulative CO2 emissions (see figure). Warm-water corals have already been affected, as have mid-latitude seagrass, high-latitude pteropods and krill, mid-latitude bivalves, and fin fishes. Even under the stringent emissions scenario (RCP2.6), warm-water corals and mid-latitude bivalves will be at high risk by 2100. Under our current rate of emissions, most marine organisms evaluated will have very high risk of impacts by 2100 and many by 2050. These results—derived from experiments, field observations, and modeling—are consistent with evidence from high-CO2 periods in the paleorecord.
Contrasting futures for ocean and society from different anthropogenic CO2 emissions scenarios

Global warming could wipe out vast numbers of marine species, a new report from a international group of researchers finds. Climate change, including rising temperatures, could force many species to relocate their native habitats, investigators conclude.
http://www.techtimes.com/articles/65...onal-study.htm
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