Eutrophication Will Increase Methane Emissions From Lakes And Impoundments During The 21St Century

Beaulieu, Jake J.; Delsontro, Tonya; Downing, John A.

doi:10.1038/s41467-019-09100-5

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Eutrophication Will Increase Methane Emissions From Lakes And Impoundments During The 21St Century

2019
By Beaulieu, Jake J. ; Delsontro, Tonya ; Downing, John A.
Source: Nat Commun 10, 1375 (2019)

[PDF-508.32 KB]

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Details:

Journal Title:

Nature Communications
Personal Author:

Beaulieu, Jake J. ; Delsontro, Tonya ; Downing, John A.

Beaulieu, Jake J. ; Delsontro, Tonya ; Downing, John A. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; Sea Grant

OAR (Oceanic and Atmospheric Research) ; Sea Grant Less -
Sea Grant Program:

MINNU (Minnesota Sea Grant)
Description:

Lakes and impoundments are an important source of methane (CH4), a potent greenhouse gas, to the atmosphere. A recent analysis shows aquatic productivity (i.e., eutrophication) is an important driver of CH4 emissions from lentic waters. Considering that aquatic productivity will increase over the next century due to climate change and a growing human population, a concomitant increase in aquatic CH4 emissions may occur. We simulate the eutrophication of lentic waters under scenarios of future nutrient loading to inland waters and show that enhanced eutrophication of lakes and impoundments will substantially increase CH4 emissions from these systems (+30–90%) over the next century. This increased CH4 emission has an atmospheric impact of 1.7–2.6 Pg C-CO2-eq y−1, which is equivalent to 18–33% of annual CO2 emissions from burning fossil fuels. Thus, it is not only important to limit eutrophication to preserve fragile water supplies, but also to avoid acceleration of climate change.
Keywords:

[+]

Eutrophication Greenhouse Gases Lakes
Source:

Nat Commun 10, 1375 (2019)
DOI:

https://doi.org/10.1038/s41467-019-09100-5
Sea Grant Document Number:

MINNU-R-19-005
Document Type:

Journal Article
Funding:

Grant no. NA18OAR4170101
Rights Information:

CC BY
Compliance:

Library
Main Document Checksum:

[+]

urn:sha256:11e27b0bda893d5ef95f4c4baa2d68da966bfc5c4a432aa6f12415891d73aa54
Download URL:

https://repository.library.noaa.gov/view/noaa/43865/noaa_43865_DS1.pdf
File Type:

	Available dataset	htm
	Supplemental media	zip

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