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Oceanic phytoplankton, atmospheric sulphur, cloud albedo and climate
The major source of cloud-condensation nuclei (CCN) over the oceans appears to be dimethylsulphide, which is produced by planktonic algae in sea water and oxidizes in the atmosphere to form aExpand
Climate Forcing by Anthropogenic Aerosols
The aerosol forcing has likely offset global greenhouse warming to a substantial degree, however, differences in geographical and seasonal distributions of these forcings preclude any simple compensation. Expand
A new perspective on recent global warming: asymmetric trends of daily maximum and minimum temperature
Abstract Monthly mean maximum and minimum temperatures for over 50% (10%) of the Northern (Southern) Hemisphere landmass, accounting for 37% of the global landmass, indicate that the rise of theExpand
Factors controlling the acidity of natural rainwater
It is often assumed1–4 that the pH of natural rainwater is controlled by the dissociation of dissolved CO2, has a value of 5.6, and that decreases below this are due to the addition of acidicExpand
Perturbation of the northern hemisphere radiative balance by backscattering from anthropogenic sulfate aerosols
Anthropogenic sulfate (SO 4 = ) aerosol particles play two potential roles in the radiative climate of the earth. In cloud-free air, SO 4 = particles scatter sunlight, some of which is lost to space,Expand
Cloud albedo enhancement by surface-active organic solutes in growing droplets
Understanding the properties of clouds in the Earth's atmosphere is currently limited by difficulties at the fundamental level of adequately describing the processes of cloud droplet nucleation andExpand
Performance Characteristics of a High-Sensitivity, Three-Wavelength, Total Scatter/Backscatter Nephelometer
Abstract As designed in the 1940s by Beuttell and Brewer, the integrating nephelometer offers a direct method of measuring light scattering by airborne particles without assumptions about particleExpand
Mesoscale Variations of Tropospheric Aerosols
Abstract Tropospheric aerosols are calculated to cause global-scale changes in the earth's heat balance, but these forcings are space/time integrals over highly variable quantities. AccurateExpand
Satellite-derived direct radiative effect of aerosols dependent on cloud cover
Aerosols from biomass burning can alter the radiative balance of the Earth by reflecting and absorbing solar radiation(1). Whether aerosols exert a net cooling or a net warming effect will depend onExpand
Organic atmospheric aerosols: review and state of the science. Rev Geophys
Atmospheric aerosol particles are known to contain organic carbon material in variable amounts, depending on their location. In some parts of the world, organic compounds make up the majority of theExpand