Back to Search
Start Over
Cross continental increase in methane ebullition under climate change
- Source :
- Nature Communications, 8(1), Nature Communications, 8, 1-8, Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017), Nature Communications, 8(1):1682. Nature Publishing Group, Nature Communications 8 (2017) 1, Nature Communications, 8, pp. 1-8, Nature Communications
- Publication Year :
- 2017
-
Abstract
- Methane (CH4) strongly contributes to observed global warming. As natural CH4 emissions mainly originate from wet ecosystems, it is important to unravel how climate change may affect these emissions. This is especially true for ebullition (bubble flux from sediments), a pathway that has long been underestimated but generally dominates emissions. Here we show a remarkably strong relationship between CH4 ebullition and temperature across a wide range of freshwater ecosystems on different continents using multi-seasonal CH4 ebullition data from the literature. As these temperature–ebullition relationships may have been affected by seasonal variation in organic matter availability, we also conducted a controlled year-round mesocosm experiment. Here 4 °C warming led to 51% higher total annual CH4 ebullition, while diffusion was not affected. Our combined findings suggest that global warming will strongly enhance freshwater CH4 emissions through a disproportional increase in ebullition (6–20% per 1 °C increase), contributing to global warming.<br />The impacts of climate change on natural methane (CH4) emissions via ebullition are unclear. Here, using published and experimental multi-seasonal CH4 ebullition data, the authors find a strong relationship between CH4 ebullition and temperature across a wide range of freshwater ecosystems globally.
- Subjects :
- Aquatic Ecology and Water Quality Management
010504 meteorology & atmospheric sciences
Science
General Physics and Astronomy
Climate change
010501 environmental sciences
01 natural sciences
Freshwater ecosystem
Article
General Biochemistry, Genetics and Molecular Biology
Methane
Mesocosm
chemistry.chemical_compound
medicine
Life Science
Organic matter
Ecosystem
GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries)
0105 earth and related environmental sciences
chemistry.chemical_classification
Multidisciplinary
Global warming
Aquatic Ecology
General Chemistry
Seasonality
Aquatische Ecologie en Waterkwaliteitsbeheer
medicine.disease
Oceanography
chemistry
13. Climate action
international
Environmental science
Subjects
Details
- ISSN :
- 20411723
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- Nature Communications
- Accession number :
- edsair.doi.dedup.....cf7704db978228fb83fca2c7510af9ad