[Vision2020] Science Journal, 3 July 2015: "Contrasting futures for ocean and society from different anthropogenic CO2 emissions scenarios"

[Ted Moffett]

Note that ocean acidification from anthropogenic CO2 emissions, while
possibly linked to influencing global warming, is actually a separate
problem that is not directly caused by global warming, though it alone
justifies large scale CO2 emission mitigation efforts, even if global
warming were not occurring, though it nearly certainly is, also from
anthropogenic CO2 emissions.

*Science Daily *article on peer reviewed research as indicated in subject
heading first below, then lower down URL to* Science* Journal article with
abstract:

http://www.sciencedaily.com/releases/2015/07/150703135248.htm

The oceans can’t take any more: Fundamental change in oceans predicted

Our oceans need an immediate and substantial reduction of anthropogenic
greenhouse gas emissions. If that doesn't happen, we could see far-reaching
and largely irreversible impacts on marine ecosystems, which would
especially be felt in developing countries. That's the conclusion of a new
review study published today in the journal *Science*. In the study, the
research team from the Ocean 2015 initiative assesses the latest findings
on the risks that climate change poses for our oceans, and demonstrates how
fundamentally marine ecosystems are likely to change if human beings
continue to produce just as much greenhouse gases as before.
------------------------------------------
http://www.sciencemag.org/content/349/6243/aac4722



*Science 3 July 2015: Vol. 349 no. 6243 DOI:
10.1126/science.aac4722                         *
Contrasting futures for ocean and society from different anthropogenic CO2
emissions scenarios Abstract

The ocean moderates anthropogenic climate change at the cost of profound
alterations of its physics, chemistry, ecology, and services. Here, we
evaluate and compare the risks of impacts on marine and coastal
ecosystems—and the goods and services they provide—for growing cumulative
carbon emissions under two contrasting emissions scenarios. The current
emissions trajectory would rapidly and significantly alter many ecosystems
and the associated services on which humans heavily depend. A reduced
emissions scenario—consistent with the Copenhagen Accord’s goal of a global
temperature increase of less than 2°C—is much more favorable to the ocean
but still substantially alters important marine ecosystems and associated
goods and services. The management options to address ocean impacts narrow
as the ocean warms and acidifies. Consequently, any new climate regime that
fails to minimize ocean impacts would be incomplete and inadequate.

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Vision2020 Post: Ted Moffett
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