#EMISSIONS MUST FALL
Pollutants and Air Quality Air pollutants are responsible for a number of adverse environmental effects, such as photochemical smog, acid rain, death of forests, or reduced atmospheric visibility. Emissions of greenhouse gases from combustion of fossil fuels are associated with the global warming of Earth’s climate. Certain air pollutants, including black carbon, not only contribute to global warming, but are also suspected of having immediate effect on regional climates. Air pollutants are substances that adversely affect the environment by interfering with climate, the physiology of plants, animal species, entire ecosystems, as well as with human property in the form of agricultural crops or man-made structures. Climate tops the list to reflect the fact that global climate change has been recognized as one of the most serious environmental challenges to be faced by humanity in the 21st century. In this context certain climate forcing agents, the most important one...