The photolysis of chlorine peroxide (ClOOCl) is a key chemical step in the depletion of polar stratospheric ozone. As such, precise measurements of the absorption cross sections for ClOOCl are required. In this paper we provide two critical pieces of laboratory data with which to constrain the rate of ozone depletion. First, we provide an optically pure ClOOCl spectrum in the photolytically imp...

To our forebears the sky was the realm of the gods, inaccessible to mere humans. Only 100 years ago, the few scientists studying environmental problems would have been incredulous at suggestions that, by the late twentieth century, humankind would have begun to change the composition and function of the stratosphere. Yet this has happened. After 8000 generations of Homo sapiens, this generation...

This paper basically follows the title, i.e. it investigates the impact of frost flowers (FF) as an Brsource, recycling of bromine on snow, and the impacts of open leads in the initiation and development of ozone depletion events in the Arctic marine boundary layer. They do this using a sophisticated 1D model with chemistry, microphysics and cloud formation used in a Lagrangian mode and by vary...

tor several decades, electricity production and use have been a growing source of concern among individuals and groups monitoring the quality of the environment. Emissions from coalfired power plants, impacts of hydroelectric development, and risks associated with nuclear energy use have been particular targets for political action, dating to the early days of the environmental movement in the ...

In recent years the household compressor manufacturers have reduced the energy losses inside the compressors resulting in a positive effect on the energy consumption in the cabinets. In the following, N-butane, which is a natural and non ozone depletion refrigerant, is compared to refrigerants presently used in household compressors.

Continuous depletion of the stratospheric ozone layer has resulted in an increase in ultraviolet-B (UV-B; 280-315 nm) radiation on the earth's surface which inhibits photochemical and photobiological processes. However, certain photosynthetic organisms have evolved mechanisms to counteract the toxicity of ultraviolet or high photosynthetically active radiation by synthesizing the UV-absorbing/s...