The tropics is the nexus for many of the remaining gaps in our knowledge of environmental
science, including the carbon cycle and atmospheric chemistry, with dire consequences for …

In urban areas, atmospheric O2 actively participates in the process of anthropogenic
emissions and energy consumption. However, the covariation between atmospheric O2 and …

Under the leadership of the C40 Cities Climate Leadership Group (C40), approximately
1100 global cities have signed to reach net-zero emissions by 2050. Accurate greenhouse …

Global crude steel production is expected to continue to increase in the coming decades to
meet the demands of the growing world population. Currently, the dominant steelmaking …

Dual-comb spectroscopy (DCS) provides broadband, high-resolution, high-sensitivity
amplitude and phase spectra within a short measurement time, thus holding promises for …

Using co-located space-based measurements of carbon dioxide (CO 2) from the Orbiting
Carbon Observatory 2 and 3 (OCO-2/3) and carbon monoxide (CO) and nitrogen dioxide …

The version 10 (v10) Atmospheric Carbon Observations from Space (ACOS) Level 2 Full
Physics (L2FP) retrieval algorithm has been applied to multi-year records of observations …

The continuous growth of global carbon emissions has become the focus of attention in
political and academic circles in various countries. Understanding the driving factors of …

Urban regions, which “inhale” O2 from the air and “exhale” CO2 and atmospheric pollutants,
including harmful gases and fine particles, are the largest sinks of atmospheric O2, yet long …

Abstract The ΔCO/ΔCO2 ratio is a good indicator of the combustion efficiency of carbon-
containing fuels, and can be useful to assess the combustion efficiency on a regional scale …