Steven Kokelj
Steven Kokelj | |
|---|---|
| Nationality | Canadian |
| Alma mater | University of Ottawa Carleton University |
| Occupation | Environmental scientist |
| Known for | leading expert on permafrost |
Steven Kokelj is a Canadian environmental scientist.[1] Meagan Wohlberg, writing in the Northern Journal, called him the Northwest Territories' foremost expert on permafrost.[2][3]
Kokelj's PhD thesis, published in 2003, was entitled, "Near-surface Ground Ice in Sediments of the Mackenzie Delta Region, Northwest Territories".[4] Since then Kokelj has held several research positions in the Northwest Territories.
In 2014 Kokelj was the very first speaker invited to lead off a series of talks on Northern issues, hosted in NWT's legislative assembly.[5] The talks were modelled after the TED conferences, and the legislature has made them available via podcast.
Publications[edit]
- "Striking Ecological Impact On Canada's Arctic Coastline Linked to Global Climate Change". Science Daily. 2011-05-16. Archived from the original on 2013-07-18. Retrieved 2014-08-18.
References[edit]
- ^
Meagan Wohlberg (2013-05-13). "Permafrost thaw changing chemistry of Peel River: Ancient sediments deposited for the first time affecting streams". Northern Journal. Archived from the original on 2014-08-18.
A new study by the NWT's foremost expert on permafrost, Steven Kokelj, who works out of the NWT Geoscience Office, shows a very noticeable increase in the presence of certain ions over the last forty years as the area becomes more and more affected by permafrost thaw.
- ^
Kokelj, S.V.; Burn, C.R. (2003). "Tilt of Spruce Trees near Ice Wedges, Mackenzie Delta, Northwest Territories, Canada". In Phillips, Marcia; Springman, Sarah M.; Arenson, Lukas U. (eds.). Permafrost—Proc. 8th Int Conf. Permafrost. Rotterdam: A.A. Balkema. pp. 567–570. ISBN 90-5809-582-7.
This observation suggests that aggradational ice development associated with post-fire active-layer thinning causes the overlying ground to heave … forests with tilted trees were underlain by permafrost of high ice content and forests with straight trees were underlain by ice-poor permafrost.
- ^
"The big melt: Canada's North on front line of change". Calgary Herald. 2006-10-04. Archived from the original on 2014-08-18.
Waste dumps in the vast Mackenzie Delta, which is rich in both wildlife and fossil fuels, are also leaking. Close to 150 "sumps," some almost as big as football fields, have been carved out of the permafrost by oil and gas companies to store drill waste that can contain high concentrations of potassium chloride salt. Many sumps from the 1970s have collapsed, or started to fail, releasing potassium chloride into the environment, says federal environmental scientist Steven Kokelj.
- ^ Steven V. Kokelj (2003). Near-surface Ground Ice in Sediments of the Mackenzie Delta Region, Northwest Territories. Carleton University. ISBN 9780612794597. Retrieved 2014-08-18.
- ^
Dali Carmichael (2014-07-21). "'Ledge Talks' kick off in Yellowknife: TED Talk-style forum with Northern theme hosted at Legislature". Northern Journal. Archived from the original on 2014-08-18. Retrieved 2014-08-18.
Steve Kokelj presents his research on permafrost, officially kicking off Ledge Talks: The Knowledge Series at the Legislative Assembly Great Hall last week.