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Ocean De-oxygenation
Component
1
#293497
The oxygen inventory of the ocean is declining, with the predictions suggesting that the level may decline by 1%–7% by 2100.
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Planet Under Pressure »
Planet Under Pressure
Planet Under Pressure☜DebateGraph and the Planet Under Pressure scientists are collaborating to distill the main arguments, evidence, risks and policy options facing humanity in a dynamic knowledge map to help visualise and inform global policy dialogue and deliberation.☜F1CEB7
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4. The way ahead »
4. The way ahead
4. The way ahead☜How should humanity respond to the emerging systemic pressures?☜FFB597
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Policy Briefs »
Policy Briefs
Policy Briefs☜A series of policy briefs have been prepared part of the scientific preparations for the conference. Each brief tackles an issue of importance to the Rio+20 conference, with a focus on the Green Economy and the Institutional Framework for Sustainable Development.☜FFB597
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4. Biodiversity and ecosystems »
4. Biodiversity and ecosystems
4. Biodiversity and ecosystems☜Biodiversity and ecosystems for a planet under pressure – transition to sustainability: interconnected challenges and solutions.☜FFB597
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Biodiversity and Ecosystem Concerns »
Biodiversity and Ecosystem Concerns
Biodiversity and Ecosystem Concerns☜Biodiversity and issues of major concern.☜FFB597
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Exceeding critical thresholds »
Exceeding critical thresholds
Exceeding critical thresholds☜Declines in biodiversity and ecosystem services tend to be unexpected, abrupt collapses that are more likely to occur once a tipping point has been passed.☜59C6EF
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Ocean De-oxygenation
Ocean De-oxygenation☜The oxygen inventory of the ocean is declining, with the predictions suggesting that the level may decline by 1%–7% by 2100.☜9FDEF6
●
Nutrient run off from agriculture and sewage near the coast »
Nutrient run off from agriculture and sewage near the coast
Nutrient run off from agriculture and sewage near the coast☜Coastal hypoxia (low levels of oxygen) is increasing; driven by increased nutrient runoff from agriculture and sewage.☜9FDEF6
●
Oceanic Euxinia »
Oceanic Euxinia
Oceanic Euxinia☜Oceanic anoxic events refer to intervals in the Earths past where portions of oceans become depleted in oxygen (O2) at depths over a large geographic area. During some of these events, euxinia develops - anoxic waters that contain high concentrations of hydrogen sulfide (H2S). Although anoxic events have not happened for millions of years, the geological record shows that they happened many times in the past, and coincide with, and may have contributed to, several mass extinctions. [1]☜9FDEF6
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Warming of the tropical oceans and areas of the North Pacific »
Warming of the tropical oceans and areas of the North Pacific
Warming of the tropical oceans and areas of the North Pacific☜The warming of the tropical oceans and areas of the North Pacific is reducing the level of oxygen in the oceans.☜9FDEF6
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Ocean faces multiple, interconnected threats »
Ocean faces multiple, interconnected threats
Ocean faces multiple, interconnected threats☜The ocean faces a multitude of interconnected threats that is unprecedented in modern history. ☜FFFACD
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+Citations (
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[1]
The State of the Ocean 2013: Perils, Prognoses and Proposals
Author:
International Programme on the State of the Ocean, IUCN
Publication info:
2013 October, 3
Cited by:
David Price
12:38 PM 29 October 2013 GMT
Citerank:
(2)
293499
Nutrient run off from agriculture and sewage near the coast
Coastal hypoxia (low levels of oxygen) is increasing; driven by increased nutrient runoff from agriculture and sewage.
10
9FDEF6
,
293500
Warming of the tropical oceans and areas of the North Pacific
The warming of the tropical oceans and areas of the North Pacific is reducing the level of oxygen in the oceans.
10
9FDEF6
URL:
http://www.stateoftheocean.org/pdfs/IPSO-Summary-Oct13-FINAL.pdf
+About
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Entered by:-
David Price
NodeID:
#293497
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Component
Entry date (GMT):
10/29/2013 12:38:00 PM
Last edit date (GMT):
10/29/2013 12:44:00 PM
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