Westward Movement

[LucidElement]

The westward movement, (age of pioneers, and rise to technology) to me was the start of the problems we have in nature. The hydraulic mining, blasted off mountain tops that then contaminated the rivers. My paper will be me connecting the westward movement to the modern climate changes of todays day and era... i just need some other examples on how the westward movement, gave rise to climate change. I feel as though its simple and i could write a 5-7 page paper on it, im just "trying to find the whole picture." Im doing research, but just was wondering if any of you had ideas as well???

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Also, thats one of my essays im going to write.... my other one is the progressive era to today and how its damaged the environment in today world.