• About
    • Which Energy Mix is this?
  • Climate News Network Archive
  • Contact
The climate news that makes a difference.
No Result
View All Result
The Energy Mix
  • Canada
  • UK & Europe
  • Fossil Fuels
  • Ending Emissions
  • Community Climate Finance
  • Clean Electricity Grid
  • Cities & Communities
SUBSCRIBE
DONATE
  • Canada
  • UK & Europe
  • Fossil Fuels
  • Ending Emissions
  • Community Climate Finance
  • Clean Electricity Grid
  • Cities & Communities
SUBSCRIBE
DONATE
No Result
View All Result
The Energy Mix
No Result
View All Result
  • Canada
  • UK & Europe
  • Fossil Fuels
  • Ending Emissions
  • Community Climate Finance
  • Clean Electricity Grid
  • Cities & Communities
  FEATURED
BP Predicts Faster Oil and Gas Decline as Clean Energy Spending Hits $1.1T in 2022 January 31, 2023
Canada Needs Oil and Gas Emissions Cap to Hit 2030 Goal: NZAB January 31, 2023
Ecuador’s Amazon Drilling Plan Shows Need for Fossil Non-Proliferation Treaty January 31, 2023
Rainforest Carbon Credits from World’s Biggest Provider are ‘Largely Worthless’, Investigation Finds January 31, 2023
Danske Bank Quits New Fossil Fuel Financing January 23, 2023
Next
Prev

Buried carbon causes deep concern

May 29, 2014
Reading time: 3 minutes
Primary Author: Tim Radford

 

FOR IMMEDIATE RELEASE Deep beneath the Great Plains of America, a vast buried store of organic carbon has been discovered by scientists − a hidden record of bygone climate, and a potentially serious danger to the future climate LONDON, 30 May − Geographers in the US have found a new factor in the carbon cycle, and – all too ominously – a new potential source of the greenhouse gas carbon dioxide. They have identified huge deposits of fossil soils, rich in organic carbon, buried beneath the Great Plains of America. The discovery is evidence that the subterranean soils could be a rich store, or sink, for ancient atmospheric carbon. But if the soil is exposed – by erosion, or by human activities such as agriculture, deforestation or mining – this treasure trove of ancient charred vegetation, now covered by wind-blown soils, could blow back into the atmosphere and add to global warming. Erika Marin-Spiotta, a biogeographer at  the University of Wisconsin-Madison, and her colleagues report in Nature Geoscience that what is known as Brady soil – ancient buried soil − formed more than 13,500 years ago in Nebraska, Kansas and other Great Plains states.

Glacial retreat

It now lies more than six metres below the surface, and it was buried by a vast deposit of loess – wind-blown dust – about 10,000 years ago, when the glaciers began to retreat from North America. The significance is not that it survived the end of the Ice Age and the colonisation of the Great Plains by grazing animals, but in the fact that it is there at all, at such depths. Calculations about the world stock of soil carbon have focused on the topsoil, and the role of root systems, decaying vegetation, microbes and fungi in the natural carbon cycle. Now the climate scientists who play with models of the carbon cycle will have to think again. “There is a lot of carbon at depths where nobody is measuring,” said Dr Marin-Spiotta. “It was assumed that there was little carbon in deeper soils. Most studies are done only in the top 30 centimetres. Our study is showing that we are grossly underestimating carbon in soils.” The researchers have enough evidence to put together a picture of a stormy past in an almost empty continent. The tract of prairie that now contains the Brady soil was never glaciated. As the glaciers retreated from the rest of the continent, the climate warmed, the vegetation regime changed, and it became scorched by wildfire − “an incredible amount of fire” according to the report’s author.

  • Concise headlines. Original content. Timely news and views from a select group of opinion leaders. Special extras.
  • Everything you need, nothing you don’t.
  • The Weekender: The climate news you need.
New!
Subscribe
Thick band

Before the ash, charred wood, and singed fibres and stalks of the prairie grasses could begin to decompose and turn back into carbon dioxide, it was covered by the accumulating loess. It now exists as a metre-thick band of dark soil far below the surface − a hidden record of bygone climate. The researchers calculate that, altogether, there could be as much as 2.7 billion tonnes of potentially reactive carbon below the Great Plains. And what happened in the Plains, could have happened in many other parts of the world. The implication is that such deposits could exist anywhere, and could just as easily be a potential contributor to global warming  if disturbed. – Climate News Network



in Climate News Network

The latest climate news and analysis, direct to your inbox

Subscribe

Related Posts

U.S. Geological Survey/wikimedia commons
Biodiversity & Habitat

Climate Change Amplifies Risk of ‘Insect Apocalypse’

December 1, 2022
43
Alaa Abd El-Fatah/wikimedia commons
COP Conferences

Rights Abuses, Intrusive Conference App Put Egypt Under Spotlight as COP 27 Host

November 14, 2022
26
Western Arctic National Parklands/wikimedia commons
Arctic & Antarctica

Arctic Wildfires Show Approach of New Climate Feedback Loop

January 2, 2023
28

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

I agree to the Terms & Conditions and Privacy Policy.

Trending Stories

Mike Mozart/Flickr

BP Predicts Faster Oil and Gas Decline as Clean Energy Spending Hits $1.1T in 2022

January 31, 2023
322
Gina Dittmer/PublicDomainPictures

Canada Needs Oil and Gas Emissions Cap to Hit 2030 Goal: NZAB

January 31, 2023
196
Ken Teegardin www.SeniorLiving.Org/flickr

Virtual Power Plants Hit an ‘Inflection Point’

January 31, 2023
124
Doc Searls/Twitter

Guilbeault Could Intervene on Ontario Greenbelt Development

January 31, 2023
132
RL0919/wikimedia commons

Danske Bank Quits New Fossil Fuel Financing

January 23, 2023
2.4k
/snappy goat

Rainforest Carbon Credits from World’s Biggest Provider are ‘Largely Worthless’, Investigation Finds

January 31, 2023
94

Recent Posts

CONFENIAE

Ecuador’s Amazon Drilling Plan Shows Need for Fossil Non-Proliferation Treaty

January 31, 2023
61
Victorgrigas/wikimedia commons

World Bank Climate Reforms Too ‘Timid and Slow,’ Critics Warn

January 31, 2023
42
United Nations

Salvage of $20B ‘Floating Time Bomb’ Delayed by Rising Cost of Oil Tankers

January 27, 2023
121
@tongbingxue/Twitter

Extreme Warming Ahead Even as Worst-Case Scenarios Grow ‘Obsolete’

January 23, 2023
341
Rachel Notley/Facebook

Notley Scorches Federal Just Transition Bill as Fossil CEO Calls for Oilsands Boom

January 23, 2023
313
EcoAnalytics

Albertans Want a Just Transition, Despite Premier’s Grumbling

January 23, 2023
323
Next Post

Environment Canada Bars Meteorologists from Discussing Climate Change

The Energy Mix - The climate news you need

Copyright 2023 © Energy Mix Productions Inc. All rights reserved.

  • About
  • Contact
  • Privacy Policy and Copyright
  • Cookie Policy

Proudly partnering with…

scf_withtagline
No Result
View All Result
  • Canada
  • UK & Europe
  • Fossil Fuels
  • Ending Emissions
  • Community Climate Finance
  • Clean Electricity Grid
  • Cities & Communities

Copyright 2022 © Smarter Shift Inc. and Energy Mix Productions Inc. All rights reserved.

Manage Cookie Consent
To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behaviour or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Functional Always active
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistics
The technical storage or access that is used exclusively for statistical purposes. The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
Manage options Manage services Manage vendors Read more about these purposes
View preferences
{title} {title} {title}