Preindustrial 14CH4 indicates greater anthropogenic fossil CH4 emissions

Global and regional emissions of radiocarbon from nuclear power plants from 1972 to 2016

(2018) G Zazzeri et al.   RADIOCARBON

Limited contribution of ancient methane to surface waters of the U.S. Beaufort Sea shelf

(2018) Katy J. Sparrow et al.   Science Advances

Large changes in biomass burning over the last millennium inferred from paleoatmospheric ethane in polar ice cores

(2018) Melinda R. Nicewonger et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Rapid rates of aerobic methane oxidation at the feather edge of gas hydrate stability in the waters of Hudson Canyon, US Atlantic Margin

(2017) Mihai Leonte et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Minimal geological methane emissions during the Younger Dryas–Preboreal abrupt warming event

(2017) Vasilii V. Petrenko et al.   NATURE

Glacial/interglacial wetland, biomass burning, and geologic methane emissions constrained by dual stable isotopic CH4ice core records

(2017) Michael Bock et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Measurements of 14 C in ancient ice from Taylor Glacier, Antarctica constrain in situ cosmogenic 14 CH 4 and 14 CO production rates

(2016) Vasilii V. Petrenko et al.   GEOCHIMICA ET COSMOCHIMICA ACTA

Preindustrial atmospheric ethane levels inferred from polar ice cores: A constraint on the geologic sources of atmospheric ethane and methane

(2016) Melinda R. Nicewonger et al.   GEOPHYSICAL RESEARCH LETTERS

Upward revision of global fossil fuel methane emissions based on isotope database

(2016) Stefan Schwietzke et al.   NATURE

Atmospheric Radiocarbon for the Period 1950–2010

(2013) Quan Hua et al.   RADIOCARBON

Deep air convection in the firn at a zero-accumulation site, central Antarctica

(2010) Jeffrey P. Severinghaus et al.   EARTH AND PLANETARY SCIENCE LETTERS

Microseepage in drylands: Flux and implications in the global atmospheric source/sink budget of methane

(2010) Giuseppe Etiope et al.   GLOBAL AND PLANETARY CHANGE

14CH4 Measurements in Greenland Ice: Investigating Last Glacial Termination CH4 Sources

(2009) V. V. Petrenko et al.   SCIENCE

Did geologic emissions of methane play any role in Quaternary climate change?

(2007) G ETIOPE et al.   GLOBAL AND PLANETARY CHANGE