{"id":42675,"date":"2014-07-29T13:12:20","date_gmt":"2014-07-29T17:12:20","guid":{"rendered":"http:\/\/planetsave.com\/?p=42675"},"modified":"2014-07-29T15:03:17","modified_gmt":"2014-07-29T19:03:17","slug":"report-today-lists-abrupt-climate-change-surprises-climate-change","status":"publish","type":"post","link":"https:\/\/planetsave.com\/articles\/report-today-lists-abrupt-climate-change-surprises-climate-change\/","title":{"rendered":"Report Today Details Abrupt Climate Change Surprises"},"content":{"rendered":"

\"Sea<\/a><\/strong><\/p>\n

The White House<\/strong> released a report this morning from the Council of Economic Advisers that shows the consequences of not\u00a0doing something about climate change NOW. Our sister publication, CleanTechnica<\/a>, has the full story, along with a word from noted Penn State climatologist Michael E. Mann<\/em>.<\/p>\n

One important section of the report discusses a number of abrupt climate<\/span>\u00a0<\/span>change<\/span>\u00a0<\/span>surprises<\/span>\u00a0and their potentially severe consequences. These climate change surprise events include the following (quoted from report)<\/em>:<\/p>\n

\u2022 Late-summer Arctic sea ice disappearance<\/strong>: Strong trends of accelerating late-summer sea ice loss have been observed in the Arctic. The melting of Arctic sea ice comprises a positive feedback loop, as less ice means more sunlight will be absorbed into the dark ocean, causing further warming.<\/p>\n

\u2022 Sea level rise (SLR) from destabilization of West Antarctic ice sheets<\/strong> (WAIS): The WAIS represents a potential SLR of 3-4 meters as well as coastal inundation and stronger storm surges. Much remains unknown of the physical processes at the ice-ocean frontier. However, two recent studies (Joughin, Smith, and Medley 2014, Rignot et. al. 2014) report evidence that irreversible WAIS destabilization has already started.<\/p>\n

\u2022 Sea level rise from other ice sheets melting<\/strong>: Losing all other ice sheets, including Greenland, may cause SLR of up to 60 meters as well as coastal inundation and stronger storm surges. Melting of the Greenland ice sheet alone may induce SLR of 7m, but it is not expected to destabilize rapidly within this century.<\/p>\n

\u2022 Disruption to Atlantic Meridional Overturning Circulation<\/strong> (AMOC): Potential disruptions to the AMOC may disrupt local marine ecosystems and shift tropical rain belts southward. Although current models do not indicate that an abrupt shift in the AMOC is likely within the century, the deep ocean remains understudied with respect to measures necessary for AMOC calculations.<\/p>\n

\u2022 Decrease in ocean oxygen<\/strong>: As the solubility of gases decrease with rising temperature, a warming of the ocean will decrease the oxygen content in the surface ocean and expand existing Oxygen Minimum Zones. This will pose a threat to aerobic marine life as well as release nitrous oxide\u2014a potent GHG\u2014as a byproduct of microbial processes. The NRC study assesses a moderate likelihood of an abrupt increase in oxygen minimum zones in this century.<\/p>\n

\u2022 Increasing release of carbon stores in soils and permafrost<\/strong>: Northern permafrost contains enough carbon to trigger a positive feedback response to warming temperatures. With an estimated stock of 1700-1800 Gt, the permafrost carbon stock could amplify considerably human-induced climate change. Small trends in soil carbon releases have been already observed.<\/p>\n

\u2022 Increasing release of methane from ocean methane hydrates<\/strong>: This is a particularly potent long-term risk due to hydrate deposits through changes in ocean water temperature; the likely timescale for the physical processes involved spans centuries, however, and there is low risk [of\u00a0climate<\/span>\u00a0<\/span>change<\/span>\u00a0<\/span>surprises from this source]\u00a0<\/span>this century.<\/p>\n","protected":false},"excerpt":{"rendered":"

The White House released a report this morning from the Council of Economic Advisers that shows the consequences of not\u00a0doing something about climate change NOW. Our sister publication, CleanTechnica, has the full story, along with a word from noted Penn State climatologist Michael E. Mann. One important section of the report discusses a number of […]<\/p>\n","protected":false},"author":135,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[9,13,35],"tags":[39236,3777,6075,7291,7352,39235,39234,22570,22666,25673,27156,31053,31107],"spectra_custom_meta":{"_edit_last":["135"],"_edit_lock":["1406661073:135"],"_rpuplugin_enabled":["yes"],"_yoast_wpseo_focuskw":["climate change surprise"],"_yoast_wpseo_linkdex":["83"],"_yoast_wpseo_metadesc":["A White House today details costs of climate change surprises. 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