Methane (CH 4 ) is produced in many natural systems that are vulnerable to change under a
warming climate, yet current CH 4 budgets, as well as future shifts in CH 4 emissions, have …

Three factors are currently driving the study of isotope variations in atmospheric trace gases
and aerosols. First of all, isotope effects in nature provide information on a host of processes …

Progress made since the start of isotopic analysis of the important atmospheric trace gas
carbon monoxide is reviewed. A systematic discussion of the main processes leading to …

Methane is an important greenhouse gas and its atmospheric concentration has almost tripled
since pre-industrial times 1 , 2 . It plays a central role in atmospheric oxidation chemistry …

It has been established that various anthropogenic contaminants have already reached all
the world's pristine locations, including the polar regions. While some of those contaminants, …

The recently reported finding that plant matter and living plants produce significant amounts
of the important greenhouse gas methane under aerobic conditions has led to an intense …

Several viable but conflicting explanations have been proposed to explain the recent ~8 ppb
per year increase in atmospheric methane after 2006, equivalent to net emissions increase …

We present a new method for chemical characterization of micro- and nanoplastics based
on thermal desorption–proton transfer reaction–mass spectrometry. The detection limit for …

Interaction with ozone transfers its anomalous (non-mass-dependent) 17 O enrichment to
atmospheric nitrogen oxides and nitrate. The 17 O anomaly (Δ 17 O) in nitrate can be used to …

The hydrological cycle and its response to environmental variability such as temperature
changes is of prime importance for climate reconstruction and prediction. We retrieved …