This problem of ocean acidification is surely best solved by application
of ground up olivine bearing rock to land / coast, so removing carbonic
acid and replacing it with alkaline Mg++ and HCO3- (bicarbonate). The
runoff from land will of course end up in the oceans.
Oliver.
On 15/05/2013 12:52, Andrew Lockley wrote:
Please see below and attached.
A
---------- Forwarded message ----------
From: E Couce <[email protected]>
Date: 15 May 2013 12:47
Subject: Re: Tropical coral reef habitat in a geoengineered, high-CO2 world
To: Andrew Lockley <[email protected]>
Cc: geoengineering <[email protected]>
Dear Andrew and all,
thanks for the interest on the paper. It can be accessed on
http://onlinelibrary.wiley.com/doi/10.1002/grl.50340/abstract
Attached is an unformatted draft (also available for download free of
charge on my website)
Best regards,
Elena
On 15 May 2013 00:26, Andrew Lockley <[email protected]> wrote:
Poster's note: Hopefully the author (see cc ) will be kind enough to submit
her paper to this list, as I lack a URL or copy
Citation
Couce, EM, Irvine, PJ, Gregorie, L, Ridgwell, AJ & Hendy, E 2013, ‘Tropical
coral reef habitat in a geoengineered, high-CO2world’. Geophysical Research
Letters, vol 40.
Abstract
Continued anthropogenic CO2 emissions are expected to impact tropical coral
reefs by further raising sea surface temperatures (SST) and intensifying ocean
acidification (OA). Although geoengineering by means of Solar Radiation
Management (SRM) may mitigate temperature increases, OA will persist, raising
important questions regarding the impact of different stressor combinations. We
apply statistical Bioclimatic Envelope Models to project changes in
shallow-water tropical coral reef habitat as a single niche (without resolving
biodiversity or community composition) under various Representative
Concentration Pathway and SRM scenarios, until 2070. We predict substantial
reductions in habitat suitability centered on the Indo-Pacific Warm Pool under
net anthropogenic radiative forcing of ≥3.0 W/m2. The near-term dominant risk
to coral reefs is increasing SSTs; below 3 W/m2 reasonably favorable conditions
are maintained, even when achieved by SRM with persisting OA. ‘Optimal’
mitigation occurs at 1.5 W/m2 because tropical SSTs over-cool in a
fully-geoengineered (i.e. pre-industrial global mean temperature) world.
Key Points:
• Large reductions in reef habitat suitability under net radiative forcing >3
W/m2
• Rising SSTs are greater threat for tropical coral reefs than ocean
acidification
• Solar Radiation Management may help maintain coral reef habitat over near-term
--
-------------------------------
Dr. Elena Couce
School of Geographical Sciences
Department of Earth Sciences
University of Bristol
E-mail: [email protected]
Web: http://www.bristol.ac.uk/earthsciences/people/elena-m-couce
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