Thomas Röckmann

TL;DR: It is demonstrated using stable carbon isotopes that methane is readily formed in situ in terrestrial plants under oxic conditions by a hitherto unrecognized process, suggesting that this newly identified source may have important implications for the global methane budget and may call for a reconsideration of the role of natural methane sources in past climate change.

TL;DR: In this paper, the North Greenland Eemian Ice Drilling (NEEM) ice core was extracted from folded Greenland ice using globally homogeneous parameters known from dated Greenland and Antarctic ice-core records.

TL;DR: The new North Greenland Eemian Ice Drilling (‘NEEM’) ice core is presented and shows only a modest ice-sheet response to the strong warming in the early Eemians, which was probably driven by the decreasing summer insolation.

TL;DR: In this article, the authors synthesize biological, geochemical, and physically focused CH4 climate feedback literature, bringing together the key findings of these disciplines, and discuss environment-specific feedback processes, including the microbial, physical, and geochemical interlinkages and the timescales on which they operate.

TL;DR: An online method for analysis of the 17O anomaly, using a strain of denitrifiers to convert nitrate to N2O, which decomposes quantitatively to N 2 and O2 in a gold furnace at 800 degrees C, followed by gas chromatographic separation and isotope analysis of O2.