We have developed a huge and thriving society; and in the process we deforest huge sections of land for living and livestock grazing. This decreases oxygen and increases carbon dioxide in the atmosphere; possibly adding to global warming though the greenhouse effect. This mass population produces mass amounts of waste, so to deal with that we just throw it into the ground, which in turn contaminates our water supply and contributes to further deforestation. We develop motorized transportation; and then burn non-renewable fossil fuels that put lead, carbon monoxide, sulfur and nitrogen oxides, ozone, excess carbon dioxide, and other harmful particulates into the atmosphere (Skjel & Whorton 95-108). This produces dangers like smog and cancer and contributes to global warming. In the production of fuel we exhaust oil reserves and pollute the oceans through spills from tankers. This endangers wilderness and wildlife. We produce an inert, easily producible propellant for aerosols; and then realize it's only inert on the ground. Once it's bombarded by UV ray in the upper atmosphere it releases a highly destructive ion that wreaks havoc on the protective ozone layer shielding us from those same deadly UV rays, creating a hole in the layer allowing the radiation through, increasing cancer and other genetic defects. We build rockets capable of going into space and breaking the earth's gravitational pull; and then immediately start to pollute this new environment with spent rockets and boosters along with other miscellaneous particles of debris (Curran and Haw 3).
The need for environmental health studies is important to avoid these potential disasters within the population and to reduce unseen health risks and concerns to workers and the environment. Even though we continue to advance in the field of public health, major additions have been implemented which have