Living a greener lifestyle can happen overnight, with a simple solution, if we wanted to. By banning plastic bags from our grocery stores and society completely, it will have an tremendous impact on the health of our planet and it‘s inhabitants. According to the EPA somewhere between 500 billion and a trillion plastic bags are consumed worldwide each year. Of those, millions end up in the litter stream outside of landfills. Once these non-biodegradable bags end up in our streams, they are there forever. Although plastic bags have an economic advantage over paper bags, store owners need to ban them because paper produces less energy consumption, solid waste, and waterborne waste.
Outline
I. Less Energy Consumption
A. Petroleum Usage
1. Petroleum is a non-renewable resource, and plastic is made of polyethylene
2. Petroleum is diminishing, getting more expensive, we need it for other energy reasons like heating, lighting, transportation, etc
B. Production Contributes to Air pollution
1. Up to a trillion plastic bags are manufactured each year.
2. Substances emitted during production are synthetic
C. Global Warming
1. plastic production process
2. emissions from manufacturing
chemicals: ethylene oxide and benzene can cause problems like birth defects, cancer and affect the blood.
II. Less Solid Waste
A. Littering the Environment
1. Once they become litter, they end up in forests, parks, beaches, streets, etc.
2. Americans throw away billion per year, Since plastic does not undergo bacterial decomposition, land-filling plastic would mean preserving the poison forever.
B. Non-Biodegradable
1. The decomposition of plastic bags takes about 1000 years
2. As it breaks down, toxic waste leaks into the soil and food chain.
C. Recycling
1. Only a small fraction is recycled
2. Recycling plastic a toxic waste is eventually put back into the environment.
III. Waterborne Waste
A. Killing Sea Life
1. 100,000 animals: dolphins, sea turtles, whales, penguins, die each year by ingesting plastic bags.
2. Even worst the bag remains even after the animal decomposes.
B. Damaging Marine Ecosystem
1. Plastic bags floats on surface, breaking into increasingly smaller particles, but never completely disappearing.
2. As plastic particles circulate through oceans, they act as sponges for waterborne contaminants such pesticides.
C. Contaminated water
1. Human health impacts of toxic chemicals entering the marine food chain through plastics since we eat seafood.
2. Toxic seepage from the land fills, result in the contamination of precious water sources, the waste mass impedes the flow of ground water.
Filed under: Fall 2010, Part 1- Research Proposal, Pollution, Research Project | Leave a Comment »