Environmental scientist

There are five major fields within environmental science which are atmospheric, ecology, environmental chemistry, geosciences and social sciences. Another perspectives is from big six environmental impact categories which are i) Acidification Potential (AP) ii) Eutrophication Potential (EP) iii) Global Warming Potential (GWP) iv) Ozone Depletion Potential (ODP) v) Photochemical Ozone Creation Potential (POCP) vi) Primary Energy Use. Other impact categories include: human toxicity, aquatictoxicity, thermal pollution, noise pollution, light pollution,visual pollution, vibration

Acidification originates from the emissionsof sulphur dioxide and oxides of nitrogen. The AP is measured in SO2 equivalents. Eutrophication originates mainly from nitrogen andphosphorus in sewage outlets and fertilizers.