Pleistocene Era Methane Adds To Greenhouse Misery

A Florida State University (FSU) scientist says that as the permafrost in Northern Siberia melts because of climate change, methane frozen there since the Pleistocene era will be released into the atmosphere, further fueling the greenhouse effect.

FSU’s Jeff Chanton explained that methane’s contribution to the greenhouse effect is more than 20 times that of carbon dioxide. Even worse, the methane now melting after 40,000 years will encourage a feedback mechanism, warming the climate and releasing even more of the methane. The study, published in Nature, paints a gloomy picture of permafrost decomposition accelerating further because of this feedback mechanism. “This is not good for the quality of human life on Earth,” Chanton lamented.

Measuring the methane bubbling from two Siberian lakes revealed the world’s northern wetlands as a much larger potential source of atmospheric methane than previously believed. Worryingly, Chanton’s findings have increased these estimates by up to 63 percent.

Chanton said that understanding the contribution of North Siberia thaw lakes to global atmospheric methane is critical, because the concentration of that potent greenhouse is highest at that latitude. Additionally, methane levels have risen sharply in recent decades and exhibit a significant seasonal jump at those high northern latitudes.

Chanton believes the thawing permafrost along the margins of the thaw lakes are the primary source of methane released in the region. “My fellow researchers and I estimate that an expansion of these thaw lakes between 1974 and 2000, a period of regional warming, increased methane emissions by 58 percent there,” said Chanton. “Because the methane now emitted in our study region dates to the Pleistocene age, it’s clear that the process, described by scientists as ‘positive feedback to global warming,’ has led to the release of old carbon stocks once stored in the permafrost.”

Source: Florida State University

, ,

Comments are closed.

Charoite slab for Cabbing Lapidary Carving Chakra Reiki Siberia picture

Charoite slab for Cabbing Lapidary Carving Chakra Reiki Siberia

$24.00



STUNNING PINK TOURMALINE(RUBELLITE) FROM SIBERIA picture

STUNNING PINK TOURMALINE(RUBELLITE) FROM SIBERIA

$39.00



Siberia Mammoth Russia Tourist Tourism Souvenir Gift 3DFridge Magnet Gift Craft picture

Siberia Mammoth Russia Tourist Tourism Souvenir Gift 3DFridge Magnet Gift Craft

$7.99



Postcard Siberia Harvest Scene near Tobolsk American Harvesting Machines~1108 picture

Postcard Siberia Harvest Scene near Tobolsk American Harvesting Machines~1108

$8.00



rawk11: 0.26LB Mammoth Tooth Fossil Rough-Cool Colors & Patterns-Siberia picture

rawk11: 0.26LB Mammoth Tooth Fossil Rough-Cool Colors & Patterns-Siberia

$75.00



1  Bag Woolley Mammoth Hair 3.75 x 3, Ice-Age from Siberia. picture

1 Bag Woolley Mammoth Hair 3.75 x 3, Ice-Age from Siberia.

$15.00



Charoite slab for Cabbing Lapidary Carving Chakra Reiki Siberia picture

Charoite slab for Cabbing Lapidary Carving Chakra Reiki Siberia

$32.00



Seraphinite Crystal Bracelet Beaded Siberia 10 grams Reiki Crystal picture

Seraphinite Crystal Bracelet Beaded Siberia 10 grams Reiki Crystal

$9.99



Maj. Gen. Graves, U.S.A., Gen. Otani, Japanese Army, and Staff,  Siberia 1918-19 picture

Maj. Gen. Graves, U.S.A., Gen. Otani, Japanese Army, and Staff,  Siberia 1918-19

$9.95



1981 Culture Mythology Siberia Taimyr Tuva Altai nganasans shaman Russian book picture

1981 Culture Mythology Siberia Taimyr Tuva Altai nganasans shaman Russian book

$120.00



Powered by WordPress. Designed by WooThemes