This review focuses on the observed characteristics of atmospheric new particle formation
(NPF) in different environments of the global troposphere. After a short introduction, we will …

Anthropogenic emissions and land use changes have modified atmospheric aerosol
concentrations and size distributions over time. Understanding preindustrial conditions and …

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 …

Aerosols of biological origin play a vital role in the Earth system, particularly in the
interactions between atmosphere, biosphere, climate, and public health. Airborne bacteria …

Quantifying global terrestrial photosynthesis is essential to understanding the global carbon
cycle and the climate system. Remote sensing has played a pivotal role in advancing our …

Atmospheric aerosols and their effect on clouds are thought to be important for
anthropogenic radiative forcing of the climate, yet remain poorly understood. Globally …

Multiphase chemistry plays a vital role in the Earth system, climate, and health. Chemical
reactions, mass transport, and phase transitions between gases, liquids, and solids are …

The climate effects of atmospheric aerosol particles serving as cloud condensation nuclei
(CCN) depend on chemical composition and hygroscopicity, which are highly variable on …

New particle formation of liquid or solid nanoparticles from gas-phase precursors is a
decisive process in Earth's atmosphere and is considered one of the largest uncertainties in …

The Amazon is one of the few continental regions where atmospheric aerosol particles and
their effects on climate are not dominated by anthropogenic sources. During the wet season …