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Listen to a conversation between a student and her Environmental Science professor.

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Thanks for dropping by, Emily.

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You\'ve been uncharacteristically quiet in class lately,

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I know I\'ve been trying to detach emotionally, like a scientist

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but this unit on plastics it\'s getting I\'m afraid that if I talk about it, I might lose my composure

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especially when it comes to plastic pollution in the Oceans

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It\'s perfectly fine to express your feelings in class, overuse of plastic is a global concern.

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Plastic isn\'t biodegradable.It just breaks down over time into smaller and smaller bits.

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Most marine species are impacted, even seabirds.

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Plastic has been ingested by more than 90% of the world\'s seabirds, algae absorb plastic too, and algae are at the bottom of the food chain.

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So what gives you hope?

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I don\'t know. I suppose it\'s good that some people started addressing this problem,

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like how England started taxing plastic bags in supermarkets in 2015 just a few cents per bag, but it led to, like,

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an 80% reduction in plastic bag use practically overnight.

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Your midterm projects coming up,

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how about recommending a way to reduce plastic waste on campus?

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England\'s success might be a good case study,

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especially if the amount of plastic entering the waters surrounding England decreased after the tax was implemented.

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This would support any plastic reduction plan you propose from the university.

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That makes total sense,

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but I\'ve already spent time researching another recommendation to present,

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and I\'m pretty far along on it.

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Oh, okay. What is it?

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A publicity campaign to reduce water usage in the residence halls to address prolonged droughts caused by climate change.

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Nice. My proposal is easy to implement.

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All people need to do is reduce their shower time to four minutes or less,

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I\'ve applied for a small grant from the university to buy some cheap, waterproof timers that could be used in the shower stalls.

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What\'s the average shower length currently,

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if it\'s already under four minutes?

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Oh, I really don\'t know how long it is.

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Why not ask some residents?

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Then I\'d include at least 30 people of different genders in my sample,

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get them to log the shower lengths for a week average those results,

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then cut, say, 30 or 40 seconds off that number. This would provide an evidence based rationale for your recommendation.

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I guess it would, yeah.

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Also, how many gallons of water are currently used in the dorms each month on average? This number could be quite motivating for students and

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provide a baseline to compare to measure the effectiveness of your campaign.

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