{"id":28158,"date":"2016-01-13T18:00:12","date_gmt":"2016-01-13T18:00:12","guid":{"rendered":"http:\/\/www.climatechangenews.com\/?p=28158"},"modified":"2016-01-13T17:58:14","modified_gmt":"2016-01-13T17:58:14","slug":"humans-caused-warming-postpones-next-ice-age-by-50000-years","status":"publish","type":"post","link":"https:\/\/www.climatechangenews.com\/2016\/01\/13\/humans-caused-warming-postpones-next-ice-age-by-50000-years\/","title":{"rendered":"Human-caused warming postpones next ice age by 50,000 years"},"content":{"rendered":"

Scientists forecast long delay to return of glaciers\u00a0as carbon emissions screw the Earth’s\u00a0climate systems<\/strong><\/span><\/p>\n

\"Peter

Grand Coulee Wall. A basalt rockface in the western United States shows the marks of\u00a0ice age floods across the epochs\u00a0(Flickr\/ Peter Prehn)<\/p><\/div>\n

By Alex Pashley<\/a><\/strong><\/p>\n

The Earth will skip a whole glacial cycle due to human-caused\u00a0global warming, new research suggests.<\/strong><\/p>\n

Vast ice sheets won\u2019t return to continental Europe and North America for 100,000 years, according to a\u00a0study by the Potsdam Institute for Climate Impact Research in Berlin on Wednesday.<\/p>\n

The last ice age ended 15,000 years ago, with glaciers having carved out today’s landscapes.<\/p>\n

It ushered in the geological epoch known as the Holocene, which some researchers argue has given way to\u00a0the Anthropocene – a phase characterised by human impacts on the environment.<\/p>\n

The Anthropocene:<\/strong> Are humans causing a new geological epoch?<\/a><\/p><\/blockquote>\n

The next ice age was due in 50,000 years’ time.\u00a0Greenhouse gas emissions\u00a0from burning oil, coal and gas are already sufficient to put it off another 50,000 years, the study published in journal Nature said.<\/p>\n

If more than\u00a01,000 gigatonnes of\u00a0carbon dioxide are cumulatively released into the atmosphere, which the world is on track to reach\u00a0by mid-century, the next ice age could be delayed another 50,000-year interval.<\/p>\n

\"Paleotemperatures2\"

Source: http:\/\/en.wikipedia.org\/wiki\/File:All_palaeotemps.png; Berger and Loutre, 2002; Berner 2006; Royer et al. 2004, and others).<\/p><\/div>\n

“Due to the extremely long life-time of anthropogenic CO2 in the atmosphere, past and future emissions have a significant impact on the timing of the next glacial inception,” said co-author Ricarda Winkelmann.<\/p>\n

Between the start of the Industrial Revolution and 2011, the world emitted about 531 Gt\u00a0of carbon, according to the UN climate science panel, the IPCC.<\/p>\n

Low radiation from summer sun, which is consistent with the stirrings\u00a0of an ice age, prompted the scientists to study\u00a0glacial cycles and changing levels of atmospheric CO2.<\/p>\n

“The bottom line is that we are basically skipping a whole glacial cycle, which is unprecedented,” said lead author, Andrey Ganopolski. “It is mind-boggling that humankind is able to interfere with a mechanism that shaped the world as we know it.”<\/p>\n","protected":false},"excerpt":{"rendered":"NEWS: Scientists forecast long delay to return of glaciers as carbon emissions screw the Earth’s climate systems","protected":false},"author":13,"featured_media":28160,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[159,467],"tags":[],"coauthors":[],"class_list":["post-28158","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-climate-science","category-glaciers","type-news"],"acf":[],"yoast_head":"\nHuman-caused warming postpones next ice age by 50,000 years<\/title>\n<meta name=\"description\" content=\"NEWS: Scientists forecast long delay to 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