[Coral-List] ocean heating

[Douglas Fenner]

Startling new research finds large buildup of heat in the oceans,
suggesting a faster rate of global warming

www.washingtonpost.com/energy-environment/2018/10/31/startling-new-research-finds-large-buildup-heat-oceans-suggesting-faster-rate-global-warming/?noredirect=on&utm_term=.40f3d450e15d

open-access

Quantification of ocean heat uptake from changes in atmospheric O2 and CO2
composition.  Nature

An independent estimate based on atmospheric O2 and CO2 measurements
suggests that global oceans absorbed about 0.83 watts per square metre of
heat over the past three decades—at the high end of previous estimates.

www.nature.com/articles/s41586-018-0651-8?WT.ec_id=NATURE-20181102&utm_source=nature_etoc&utm_medium=email&utm_campaign=20181102&sap-outbound-id=377C798158FDD7262C00D02116A653F7C69FD202

open-access

If the oceans heat faster than was expected, there could be more coral
bleaching mortality.

Cheers,  Doug
-- 
Douglas Fenner
Ocean Associates, Inc. Contractor
NOAA Fisheries Service
Pacific Islands Regional Office
Honolulu
and:
Consultant
PO Box 7390
Pago Pago, American Samoa 96799  USA

IPCC says limiting global warming to 1.5C will require drastic action.  Coral
reefs would almost entirely disappear with 2 degrees of warming, with just
10–30% of existing reefs surviving at 1.5 °C.
https://www.nature.com/articles/d41586-018-06876-2?utm_source=briefing-dy&utm_medium=email&utm_campaign=briefing&utm_content=20181009

Key climate panel, citing impending crisis, urges crash effort to reduce
emissions.  Coral reefs are projected to decline 70% to 90% at 1.5°C, but
at 2°C, 99% of reefs would be ravaged.
https://www.sciencemag.org/news/2018/10/key-climate-panel-citing-impending-crisis-urges-crash-effort-reduce-emissions?utm_campaign=news_daily_2018-10-08&et_rid=17045989&et_cid=2416592

Major UN report says climate change is worse than first thought.  Even 1.5C
could cause damage that could run as high as $54 trillion.  (annual US GDP
is US$20 trillion, China and EU should be roughly similar, 2014 world GWP
was US$76 trillion, Purchasing Power Parity was US$107 trillion.)
https://www.engadget.com/2018/10/08/major-un-report-climate-change-worse/?yptr=yahoo