Aerosols interact with radiation and clouds. Substantial progress made over the past 40
years in observing, understanding, and modeling these processes helped quantify the …

Aerosol–cloud interactions (ACIs) are considered to be the most uncertain driver of present-
day radiative forcing due to human activities. The nonlinearity of cloud-state changes to …

INTRODUCTION Human-made emissions of particulate air pollution can offset part of the
warming induced by emissions of greenhouse gases, by enhancing low-level clouds that …

The cloud droplet number concentration (N d) is of central interest to improve the
understanding of cloud physics and for quantifying the effective radiative forcing by aerosol …

Aerosols are a critical factor in the atmospheric hydrological cycle and radiation budget. As a
major agent for clouds to form and a significant attenuator of solar radiation, aerosols affect …

Cloud drop condensation nuclei (CCN) and ice nuclei (IN) particles determine to a large
extent cloud microstructure and, consequently, cloud albedo and the dynamic response of …

This report is the first complete assessment of the science of climate change since Working
Group I (WGI) of the IPCC produced its second report Climate Change 1995: The Science of …

Human activities are releasing tiny particles (aerosols) into the atmosphere. These human-
made aerosols enhance scattering and absorption of solar radiation. They also produce …

Aerosols and clouds have important effects on Earth's climate through their effects on the
radiation budget and the cycling of water between the atmosphere and Earth's surface …

Aerosols affect the climate system by changing cloud characteristics in many ways. They act
as cloud condensation and ice nuclei, they may inhibit freezing and they could have an …