Air pollution and emissions
Air pollution is the modification of the natural characteristics of the atmosphere by a chemical, particulate matter or biological agent. Stratospheric ozone depletion due to air pollution has long been recognized as a threat to human health as well as to the Earth's ecosystems

"The integration of environmental aspects into the products development process, by balancing ecological and economic requirements. Eco-design considers environmental aspects at all stages of the product development process, striving for products which make the lowest possible environment impact throughout the product cycle life." United Nations Environment Program (UNEP), 2001

A dynamic system of plants, animals and micro-organisms and their non-living environment, which form a functional unit through their interaction.