There have been several environmental changes in the world recently occurring due to the pollution of the environment. Increase in production, manufacturing, the use of motor vehicles and basically dumping waste into the environment. This has brought about different types of pollution, each resulting in negative effects due to reducing quality air and other environmental features. If things keep going down this road, the future generations may not have a clean environment to come to, and it may even signify the end of our world. Some of the major environmental pollutions include air pollution, sound pollution, soil pollution and water pollution.
Air pollution occurs due to some dangerous gases being released into the environment in large quantities. If the gases are released in small quantities and over a long time, the environment has ways of cleaning itself out, but due to the increase in development and population, this is not possible. This threat for the future world has become a world issue which requires a quick and fast measure taken against it. Otherwise, we might just destroy the only thing that rejuvenates itself and supports our ecosystem. It has been clear though from the past that this issue will not be gotten rid of so easily. This is because even the problem itself has not been fully discovered. People used to consider big companies and automobiles to be the most pollutants, if not the only ones. It has emerged that there are some sources which we have not even put into mind. This is the same problem facing of Portland and especially to the Northwest (Farago, 2005).
In Portland, the local steel plant was put on the spotlight for a while for what the neighboring community claimed to be air pollution. The company claimed to be in full compliance for years, until finally the department for air quality control had to intervene. Then there came the