Permafrost by MORGAN WILLITS https://padlet.com/mwillits8629/v5x5q6cm5pnr why it's the most harmful en-us 2019-04-12 17:04:00 UTC 2026-01-29 11:08:52 UTC hello@padlet.com https://imgglb.padletcdn.com/v13/image?t=g_auto&url=https%3A%2F%2Fpadlet.net%2Ficons%2Fpng%2F1f30d.png What is permafrost mwillits8629 https://padlet.com/mwillits8629/v5x5q6cm5pnr/wish/351242677 ¨Permafrost is ground that remains frozen for two or more consecutive years. It is composed of rock, soil, sediments, and varying amounts of ice that bind the elements together¨- Earth institute columbia university ]]> 2019-04-12 17:11:53 UTC https://padlet.com/mwillits8629/v5x5q6cm5pnr/wish/351242677 Ecological Consequences mwillits8629 https://padlet.com/mwillits8629/v5x5q6cm5pnr/wish/351243840 The Arctic permafrost stores one of the largest natural reservoirs of organic carbon in the world in its frozen soils. But once thawed, soil microbes in the permafrost can turn that carbon into the greenhouse gases carbon dioxide and methane, which then enters into the atmosphere and contribute to global warming.]]> 2019-04-12 17:14:41 UTC https://padlet.com/mwillits8629/v5x5q6cm5pnr/wish/351243840 Other Consequences mwillits8629 https://padlet.com/mwillits8629/v5x5q6cm5pnr/wish/351244431 ¨Scientists revealed it could also release massive amounts of mercury — a potent neurotoxin and serious threat to human health.¨- Washington Post]]> 2019-04-12 17:16:15 UTC https://padlet.com/mwillits8629/v5x5q6cm5pnr/wish/351244431 Melting of permafrost causes the ground to become unstable and cause buildings to be unsafe mwillits8629 https://padlet.com/mwillits8629/v5x5q6cm5pnr/wish/351245396 2019-04-12 17:18:03 UTC https://padlet.com/mwillits8629/v5x5q6cm5pnr/wish/351245396 If this ice wedge melts the ground will collapse and create a hole. mwillits8629 https://padlet.com/mwillits8629/v5x5q6cm5pnr/wish/351509624 2019-04-14 21:12:55 UTC https://padlet.com/mwillits8629/v5x5q6cm5pnr/wish/351509624 mwillits8629 https://padlet.com/mwillits8629/v5x5q6cm5pnr/wish/351516274 2019-04-14 22:41:35 UTC https://padlet.com/mwillits8629/v5x5q6cm5pnr/wish/351516274 Alaska and Russia mwillits8629 https://padlet.com/mwillits8629/v5x5q6cm5pnr/wish/351732752 85 percent of Alaska, 55 percent of Russia and Canada, and probably all of Antarctica. Permafrost is more widespread and extends to greater depths in the north than in the south.]]> 2019-04-15 17:03:37 UTC https://padlet.com/mwillits8629/v5x5q6cm5pnr/wish/351732752 EPA mwillits8629 https://padlet.com/mwillits8629/v5x5q6cm5pnr/wish/351830302 This figure shows how annual average temperatures in the contiguous 48 states have changed since 1901. Surface data come from land-based weather stations. Satellite measurements cover the lower troposphere, which is the lowest level of the Earth’s atmosphere. “UAH” and “RSS” represent two different methods of analyzing the original satellite measurements. This graph uses the 1901–2000 average as a baseline for depicting change. Choosing a different baseline period would not change the shape of the data over time.
Data source: NOAA, 20161
Web update: August 2016
]]> 2019-04-15 23:27:43 UTC https://padlet.com/mwillits8629/v5x5q6cm5pnr/wish/351830302 Positive feedback system mwillits8629 https://padlet.com/mwillits8629/v5x5q6cm5pnr/wish/351831365 As the global thermostat rises more and more permafrost will thaw, releasing planet heating emissions. With those planet heating emissions trapping more warmth, more permafrost will thaw releasing more carbon dioxide and methane into the atmosphere; trapping us in cycle where the output enhances the original stimulus.]]> 2019-04-15 23:36:33 UTC https://padlet.com/mwillits8629/v5x5q6cm5pnr/wish/351831365