The atmospheric methane burden is increasing rapidly, contrary to pathways compatible
with the goals of the 2015 United Nations Framework Convention on Climate Change Paris …

Accelerator mass spectrometry (AMS) was born in the late 1970s, when it was realized at
nuclear physics laboratories that the accelerator systems can be used as a sensitive mass …

We evaluate the global atmospheric methane column retrievals from the new TROPOMI
satellite instrument and apply them to a global inversion of methane sources for 2019 at 2∘× …

Globally, there are millions of kilometres of drainage ditches which have the potential to emit
the powerful greenhouse gas methane (CH 4), but these emissions are not reported in …

Megacities, with their large and complex infrastructures, are significant sources of methane
emissions. To develop a simple, low-cost methodology to quantify these globally important …

Atmospheric methane (CH 4) continues to increase, but there are multiple anthropogenic
source categories that can be targeted for cost-effective emissions reduction. Cities emit CH …

Surface observations have recorded large and incompletely understood changes to
atmospheric methane (CH4) this century. However, their ability to reveal the responsible …

Radiocarbon (14C) is a powerful tracer of fossil emissions because fossil fuels are entirely
depleted in 14C, but observations of 14CO2 and especially 14CH4 in urban regions are …

Cities are treated as global methane (CH 4) emission hotspots and the monitoring of
atmospheric CH 4 concentration in cities is necessary to evaluate anthropogenic CH 4 …

Temporal and spatial distribution of both biogenic and anthropogenic components of
atmospheric carbon dioxide (CO 2) and methane (CH 4) is crucial for understanding the …