There were measurable holes in the earth's ozone. Pollution choked many of the world's waterways and acid rain deteriorated forest health. In our efforts to improve crop protection, commercial products and medicines, we also caused unintended harm to our planet and humans.īy the mid-20th century, some of the long-term negative effects of these advancements could not be ignored. The concept of greening chemistry developed in the business and regulatory communities as a natural evolution of pollution prevention initiatives.
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