Chapter 15 Silent Spring

By Scout , Milton and Uriah

Summary of Chapter 15

The main focus of chapter 15 was the effect pesticides and other outside variables on the environment . For example, an effect pesticides had on the environment was that, in Ontario when spraying Black flies, it caused the population to increase 17 times than it normally is. Another example is the deer population in Arizona. When the people killed off the common predator of the deer, population shot up thus causing a decrease in food, which led to the deaths of many deer.

Powerful quotes in chapter 15

1)To have risked so much in our efforts to mold nature to our satisfaction and yet to have failed in achieving our goal would indeed be the final irony.


2) Nature controls her own


3) once we set our foot on the chemical treadmill, we cannot stop

What surprised us

The thing that surprised us in the passage was how Carson explained how nature keeps itself in check with it's own methods and how we mess it up . For example, it the text it says that in an attempt to get eliminate coyotes, field mice staring to increase their population rapidly because their "check" was eliminated

Changes since 1985

Changes that have occurred since 1985, is that DDT is largely unused in most of the world. And that the spraying of pesticides without telling landowners no longer happens. Also, population of a species is left alone unless is has a negative effect on it's environment.
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Structure

Carson used emotion and fact to structure her argument. She tells about how man throws off the balance of nature while talking about how all these animals and plants are dying.

Incorporation of ethos, logos and pathos

Carson used pathos as a means of getting people to feel guilty or upset about what has happened to animals because of humans. An example from the text is how humans 'helped" the deer population in Arizona by killing off their predator, the coyote. the result was that the deer population started to decrease due to lack of food. She used logos to describe that nature will control itself saying: "70 to 80 per cent of the earth’s creatures are insects. The vast majority of these insects are held in check by natural forces, without any intervention by man".
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Claim

Carson's claim in this chapter is that, humans trying to control nature in an attempt to make it better will never work and it will only negatively effect the environment