... experiment Source attribution Airborne greenhouse gas measurements New York City A high proportion of the U.S. population (82.3%) resides within Census-defined urban regions ( US Census Bureau, 2022 ), projected to reach 89.2% by 2050 ( United Nations, 2019 ). A recent study has shown that ≈44...

... Airborne greenhouse gas measurements Mass balance experiment The Biden administration has set national goals to reach a 50% reduction in greenhouse gases (GHG) by 2030 and net zero by 2050, consistent with the Paris Agreement ( Whitehouse.gov, 2021 ). This undertaking will require efforts...

... and source are credited. See http://creativecommons.org/licenses/by/4.0/ . Urban emissions Carbon dioxide Emission quantification Airborne greenhouse gas measurements Inventory scaling New York City Carbon dioxide (CO 2 ) emissions from fossil fuel combustion are the largest source...

..., and reproduction in any medium, provided the original author and source are credited. See http://creativecommons.org/licenses/by/4.0/ . Urban methane Airborne greenhouse gas measurements Methane emissions Methane (CH 4 ) is a potent greenhouse gas with contemporary concentrations today almost...