Open access notables Despite the potential for positive methane–climate feedbacks from global wetlands, most Earth System Models (ESMs) and Integrated Assessment Models (IAMs) that informed the last Assessment Report of the IPCC do not directly incorporate this process. Publishing in Nature Climate Change, Zheng et al. unpack the implications of this oversight in Recent intensification of wetland methane feedback. The authors find that compared to climate models CH4 emissions are rising notably faster than projected, on the order of perhaps 25%. This of course is not good news. The article is consistent with a steady drumbeat of large and small ugly surprises appearing in the GHG sources & sinks, flux.. section here each week.