Leaves are one of nature's most miraculous creations. They tie it all together. They rise from the ground, reach to the sky, and bring life.... Leaves are one of nature's most miraculous creations. They tie it all together. They rise from the ground, reach to the sky, and bring life to the Earth. Leaves beauty and delight, thus meriting our praise for their abundant gifts. Children and animals love frolicing in fresh piles of leaves.

Yet by the late 20th century human ingenuity, irritated by fallen leaves, created an industrial machine--the highly-polluting, gas-operated leaf blower--that disrupts leaves' natural cycle--and night-workers' sleeping cycle.

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