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Posts tagged "marine life"

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Discussions Discussion Technology solutions for climate change
Xandra M-USA, Oct. 6, 2013

Hello! I’m Xandra and I’m from the United States.

I think that one of the energy resources we should look toward is hydro-power. Approximately 70% of the Earth’s surface is covered in water, which we could use as a renewable resource to produce electricity. This rushing, aqueous environment is perfect for harnessing and reaping the benefits of turbines.

Recently, I read an article concerning the instillation of 30 turbines along the waters that join the Long Island Sound with the Atlantic Ocean in the New York Harbor. This movement was a part of the Roosevelt Island Tidal Energy Project, the first tidal project in the US that is commercially licensed. The propellers will use the rapids of the water to create 1,050 kilowatts of electricity that will provide power for 9,500 New York residents. Not only that, but the turbines will also assist with data collection concerning marine life. A group of technicians who will monitor these propellers will retrieve vital information on the environmental impacts on the fish as well as the river sediment. Not only do the turbines enhance energy production on land, but it benefits the aquatic ecosystems and allow us to carefully monitor our affect on the animals.

The United States itself has about 88,633 miles of tidal shoreline and 12,883 miles of general coastline in which turbines can be implemented. By using tidal energy resources wisely and with the advances of modern science in this renewable energy field, hydro-kinetic technology and water resources can hopefully constitute 15% of our nation’s electricity production by the year 2030.

http://energy.gov/articles/turbines-nyc-east-river-will-provide-power-9500-residents
Xandra M-USA
Comments (1)
  • Meredith N-USA Meredith N-USA Oct. 10, 2013
    I agree with you that hydro-power seems like a very good solution to producing energy in a clean way. Although solar panels and windmills are also beneficial renewable energy sources, it is not always windy or sunny outside. However, the ocean is constantly moving, which means turbines are continuously turning and generating power. You bring up an important point when you say that 70% of earth is made of ocean. If earth is covered in this much water, scientists should really be looking for ways to make use of the energy from all the water instead of non-renewable sources such as coal. Even though 9,500 people are not a lot, it is still making a difference. Furthermore, this amount of energy comes from only 30 turbines. If humans turned to hydro-power on a mass scale, this would generate a great amount of energy. Although scientists are monitoring marine life, what affects do you think these turbines would have on animal ecosystems? I am curious as to whether these turbines generate any sound that could possibly disturb sea animals.

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Discussions Discussion Plastic - the Great or the Threat?
Marissa B-USA, Nov. 15, 2012

Plastic. Plastic is one of the most used materials in our world. We use it for everything from cell phones to toothbrushes. Over 2.7 million tons of plastic are used just for water bottles each year! This is an enormous amount of a material that is unhealthy for our environment.

Plastic is such a great material to use, but is a huge danger to our enviroment. Over 300 million tons of plastic are produced each year. The first reason why plastic is bad is because it is mostly made of crude oil. This crude oil aids in making plastic non-biodegradable, which means it can not be destroyed easily. One piece of plastic can take over 400 years to degrade. This means one of the only ways to get rid of plastic is to bury it somewhere in a landfill. These landfills use up valuable space and hurt our environment.

Another reason why plastic is bad is because it has chemicals that humans can absorb and inhale. Researchers have concluded that many types of plastic release chemicals such as Bisphenol A (BPA), Phthalates, Vinyl Chloride,Dioxin ,and Styrene. All of these chemicals can produce life threatening diseases such as breast cancer. These chemicals really affect the environment and the lives of the human race.

The final reason plastic is bad is because it doesn’t just hurt humans, it hurts our wildlife. Over 100,000 marine animals are killed each year due to plastic posioning. This material is killing our species and is harming our oceans.

We need to find a new “green” resource that does not harm our environment like plastic does.

http://www.breastcancerfund.org/clear-science/chemicals-linked-to-breast-cancer/plastics/
Marissa B-USA
Comments (1)
  • Jana H-USA Jana H-USA Nov. 15, 2012
    Wow plastic is more harmful than I thought!
    I have found that researchers have developed biodegradable substitutes for plastics and other materials contributing to greenhouse gas emissions. Take a look at it:

    http://phys.org/news156526288.html

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Discussions Discussion Marine Biology
ronald hillard, May 8, 2012

my name is ronald and i am wanting to become a marine mammal trainer and wanting to learn more about marine biolgy

ronald hillard
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