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In 1835, Ralph Waldo Emerson publishes his renowned book, “Nature”, encouraging respect for the natural world and inspiring environmentalism In the 1850s and 1860s George Perkins Marsh writes “Man and Nature”, warning of human-induced environmental damage
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Exposed dangers of pesticides (especially DDT); widely credited with helping launch or galvanize the modern environmental movement (https://www.pbs.org/wnet/americanmasters/a-fierce-green-fire-timeline-of-environmental-movement/2988/)
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A pollution disaster that helped push for stronger environmental regulation in the U.S.
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An event that raised environmental issues into the mainstream media
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First major UN conference that focused on global environmental issues. This conference produced the Stockholm Declaration Action Plan
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An international treaty to remove the usage of ozone-destroying chemicals
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Big moment for sustainable development which produced Agenda 21 and the Rio Declaration (https://www.un.org/en/conferences/environment/rio1992)
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Helped bring climate change to a broader public audience
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One of the largest global climate events that showed strong public outrage for climate action
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A major international treaty incentivizing the reduction of greenhouse gas emissions to aim to reduce global warming