Regional severe haze represents an enormous environmental problem in China, influencing
air quality, human health, ecosystem, weather, and climate. These extremes are …

The importance of organic aerosol particles in the environment has been long established,
influencing cloud formation and lifetime, absorbing and scattering sunlight, affecting …

Short‑lived climate forcers (SLCFs) affect climate and are, in most cases, also air pollutants.
They include aerosols (sulphate, nitrate, ammonium, carbonaceous aerosols, mineral dust …

To control the spread of the 2019 novel coronavirus (COVID-19), China imposed nationwide
restrictions on the movement of its population (lockdown) after the Chinese New Year of …

Executive summary Land and climate interact in complex ways through changes in forcing
and multiple biophysical and biogeochemical feedbacks across different spatial and …

Poor air quality is globally the largest environmental health risk. Epidemiological studies
have uncovered clear relationships of gaseous pollutants and particulate matter (PM) with …

Aerosol-cloud interactions remain the largest uncertainty in climate projections. Ultrafine
aerosol particles smaller than 50 nanometers (UAP< 50) can be abundant in the …

Atmospheric aerosols are complex mixtures of different chemical species, and individual
particles exist in many different shapes and morphologies. Together, these characteristics …

Emitted by numerous primary sources and formed by secondary sources, atmospheric
brown carbon (BrC) aerosol is chemically complex. As BrC aerosol ages in the atmosphere …

Severe haze events with exceedingly high-levels of fine aerosols occur frequently over the
past decades in the North China Plain (NCP), exerting profound impacts on human health …