Makahiya (Mimosa Pudica) Root Extract as a Natural Repellent Against Dengue Mosquito (Aedes Aegypti)

Topics: Plastic, Ocean, Marine debris Pages: 2 (478 words) Published: July 23, 2013
Since 1950, plastics have played an omnipresent part of our daily lives. They are everywhere. Globally we use more than 260 million tons of plastic each year. The environmental impacts resulting from the accumulation of plastic waste are huge and increasing. Plastic debris affects wildlife, human health, and the environment. The millions of tons of plastic bottles, bags, and garbage in the world's oceans are breaking down and leaching toxins posing a threat to marine life and human. Plastic materials in landfills sink in harmful chemicals into groundwater. Chemicals added to plastics are dangerously absorbed by humans like altering hormones. The second problem with plastics is that they are an environmental nightmare. First, they are a non-renewable, fossil fuel based substance. Plastics are made from petroleum so they never ever biodegrade. In fact, every piece of plastic ever produced is still in existence in some form today. Over time (a long period of time) plastics actually photodegrade into smaller and smaller toxic pieces but never disappear. Many of these tiny pieces end up in our oceans and waterways and are eaten by marine life. Ocean currents and storms carry these plastic items far out to sea or where they accumulate in gyres (large areas with water moving in a vortex pattern) or even wash up on remote islands. Tiny filter-feeding animals often ingest the plastic pellets. Larger animals, such as sea turtles and sea birds, mistake the larger plastic pieces for food, or prey on these smaller animals so that the plastic particles travel up the food chain. Birds and mammals are dying of starvation and dehydration with bellies full of plastics. Fish are ingesting toxins at such a rate that soon they will no longer be safe to eat. But simple measures could reduce the problem. Biodegradable plastics — plastics made of plant materials—are becoming widely available as an alternative to regular plastics, which are manufactured from petroleum. Responsible...
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