Gas hydrates have received considerable attention due to their important role in flow
assurance for the oil and gas industry, their extensive natural occurrence on Earth and …

Understanding and quantifying the global methane (CH 4) budget is important for assessing
realistic pathways to mitigate climate change. Atmospheric emissions and concentrations of …

ES 6: 3-5 Replace “It is unequivocal that emissions of the well-mixed greenhouse gases
(GHG) carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2 O) from human activities …

This chapter assesses the state of physical, biological and social knowledge concerning the
Arctic and Antarctic ocean and cryosphere, how they are affected by climate change, and …

Tip** elements are components of the Earth system which may respond nonlinearly to
anthropogenic climate change by transitioning toward substantially different long‐term …

Atmospheric methane grew very rapidly in 2014 (12.7±0.5 ppb/year), 2015 (10.1±0.7
ppb/year), 2016 (7.0±0.7 ppb/year), and 2017 (7.7±0.7 ppb/year), at rates not observed …

Methane (CH4) is produced in many natural systems that are vulnerable to change under a
warming climate, yet current CH4 budgets, as well as future shifts in CH4 emissions, have …

Gas hydrate, a frozen, naturally‐occurring, and highly‐concentrated form of methane,
sequesters significant carbon in the global system and is stable only over a range of low …

Oceanic emissions represent a highly uncertain term in the natural atmospheric methane
(CH4) budget, due to the sparse sampling of dissolved CH4 in the marine environment …

Atmospheric methane plays a major role in controlling climate, yet contemporary methane
trends (1982–2017) have defied explanation with numerous, often conflicting, hypotheses …