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Article
Open AccessDearomatization drives complexity generation in freshwater organic matter
Dissolved organic matter (DOM) is one of the most complex, dynamic and abundant sources of organic carbon, but its chemical reactivity remains uncertain1–3. Greater insights into DOM structural features could fac...
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Article
Open AccessPractical Guide to Measuring Wetland Carbon Pools and Fluxes
Wetlands cover a small portion of the world, but have disproportionate influence on global carbon (C) sequestration, carbon dioxide and methane emissions, and aquatic C fluxes. However, the underlying biogeoch...
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Article
Open AccessGroundwater discharge as a driver of methane emissions from Arctic lakes
Lateral CH4 inputs to Arctic lakes through groundwater discharge could be substantial and constitute an important pathway that links CH4 production in thawing permafrost to atmospheric emissions via lakes. Yet, g...
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Article
Spatial and vertical distribution of aerobic and anaerobic dark inorganic carbon fixation in coastal tropical lake sediments
The process of chemosynthesis can represent an important source of organic matter and energy across the benthic zone. However, its detailed vertical distribution and importance in relation to other microbial p...
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Article
Open AccessChlorine cycling and the fate of Cl in terrestrial environments
Chlorine (Cl) in the terrestrial environment is of interest from multiple perspectives, including the use of chloride as a tracer for water flow and contaminant transport, organochlorine pollutants, Cl cycling...
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Article
Open AccessCorrection to: Photo-reactivity of dissolved organic carbon in the freshwater continuum
The original publication of this paper contains a mistake in Figure 3.
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Article
Open AccessRadiotracer evidence that the rhizosphere is a hot-spot for chlorination of soil organic matter
The ubiquitous and extensive natural chlorination of organic matter in soils, leading to levels of chlorinated soil organic matter that often exceed the levels of chloride, remains mysterious in terms of its c...
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Article
Open AccessPhoto-reactivity of dissolved organic carbon in the freshwater continuum
The patterns in dissolved organic carbon (DOC) photo-mineralization along the freshwater continuum from land to sea are poorly known. Specifically, it has not been resolved how the photo-degradation of DOC int...
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Article
Deforestation releases old carbon
Deep soil carbon in tropical catchments can be rapidly mobilized to rivers upon land-use change to agriculture, suggest analyses of dissolved organic carbon. Such carbon stocks had been thought stable for mill...
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Article
Open AccessEvaluating gas chromatography with a halogen-specific detector for the determination of disinfection by-products in drinking water
The occurrence of disinfection by-products (DBPs) in drinking water has become an issue of concern during the past decades. The DBPs pose health risks and are suspected to cause various cancer forms, be genoto...
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Article
Erratum: Large emissions from floodplain trees close the Amazon methane budget
Nature 552, 230–234 (2017); doi:10.1038/nature24639 (2017) In this Letter, owing to an error during the production process, the surname of author Humberto Marotta was incorrectly listed as ‘Ribeiro’. This has ...
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Article
Large emissions from floodplain trees close the Amazon methane budget
Methane fluxes from the stems of Amazonian floodplain trees indicate that the escape of soil gas through wetland trees is the dominant source of methane emissions in the Amazon basin.
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Article
Open AccessSpatio-temporal patterns of stream methane and carbon dioxide emissions in a hemiboreal catchment in Southwest Sweden
Global stream and river greenhouse gas emissions seem to be as large as the oceanic C uptake. However, stream and river emissions are uncertain until both spatial and temporal variability have been quantified....
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Article
Making methane visible
Methane (CH4) is one of the most important greenhouse gases, and an important energy carrier in biogas and natural gas. Its large-scale emission patterns have been unpredictable and the source and sink distributi...
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Article
Climate-sensitive northern lakes and ponds are critical components of methane release
Lakes are sources of the greenhouse gas methane. A synthesis of measurements of methane emissions reveals that lakes and ponds above 50 °N emit 16.5 Tg methane annually, and emissions may increase by 20 to 50%...
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Methane and Carbon Dioxide Dynamics in the Paraguay River Floodplain (Pantanal) in Episodic Anoxia Events
Worldwide wetlands contribute to the global carbon cycle by emitting about a third of the global methane (CH4) emissions. However, CH4 and carbon dioxide (CO2) dynamics remain poorly understood in the largest tro...
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Article
An inter-regional assessment of concentrations and δ13C values of methane and dissolved inorganic carbon in small European lakes
Methane (CH4) and carbon dioxide emissions from lakes are relevant for assessing the greenhouse gas output of wetlands. However, only few standardized datasets describe concentrations of these gases in lakes acro...
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Article
Influence of weather variables on methane and carbon dioxide flux from a shallow pond
Freshwaters are important sources of the greenhouse gases methane (CH4) and carbon dioxide (CO2) to the atmosphere. Knowledge about temporal variability in these fluxes is very limited, yet critical for proper st...
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Article
Methane fluxes show consistent temperature dependence across microbial to ecosystem scales
Meta-analyses show that the temperature dependence of methane fluxes scales consistently across populations of methanogens, microbial communities and whole ecosystems, and that this temperature dependence is h...
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Article
Carbon emission from hydroelectric reservoirs linked to reservoir age and latitude
Reservoirs emit significant amounts of greenhouse gases. An analysis of data from 85 globally distributed hydroelectric reservoirs indicates that about 48 Tg carbon is emitted as carbon dioxide and 3 Tg carbon...
