Arctic permafrost stores nearly 1,700 billion metric tons of frozen and thawing carbon.
Anthropogenic warming threatens to release an unknown quantity of this carbon to the …

Fossil fuel combustion, land use change and other human activities have increased the
atmospheric carbon dioxide (CO2) abundance by about 50% since the beginning of the …

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

NASA's Orbiting Carbon Observatory-2 (OCO-2) has been measuring carbon dioxide
column-averaged dry-air mole fraction, X CO 2, in the Earth's atmosphere for over 2 years. In …

In order to better manage anthropogenic CO2 emissions, improved methods of quantifying
emissions are needed at all spatial scales from the national level down to the facility level …

Methane is a greenhouse gas emitted by a range of natural and anthropogenic sources.
Atmospheric methane has been measured continuously from space since 2003, and new …

Large variations in the growth of atmospheric methane, a prominent greenhouse gas, are
driven by a diverse range of anthropogenic and natural emissions and by loss from …

Anthropogenic methane emissions originate from a large number of relatively small point
sources. The planned GHGSat satellite fleet aims to quantify emissions from individual point …

The Japanese Greenhouse gases Observing SATellite-2 (GOSAT-2), in orbit since 29
October 2018, follows up the GOSAT mission, itself in orbit since 23 January 2009. GOSAT-2 …

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∘× …