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Viewpoint: Forty-three years of the environmental movement?

A Greener Life

Instead, environmentalists were mainly concerned about the ozone layer, nuclear meltdown and chemical industrial pollution, the erosion of biodiversity and population explosion. In June 1979, atmospheric carbon stood at 339ppm, just below the 350ppm level scientists believe to be safe. Today that number is 420ppm and rising.

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Back in Black: Creating positive changes by focusing on a short-lived pollutant

HumanNature

When fuels are burned to create energy in a process called combustion, black carbon along with carbon monoxide and other compounds are created because there is not enough oxygen in the atmosphere for the reaction to go to completion. Whenever there are combustion processes, of which there are many in our industrial society (e.g.,

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Conservation: History and Future

Environmental Science

The developing science of climatology with its understanding of the need for chemistry made scientists concerned for the future on seeing masses amounts of carbon released into the atmosphere (8) , but also (as it was previously) regarding trees as a resource and the potential for depletion. Their status today is “Near Threatened”.

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May 2020 Updates to the Climate Case Charts

Columbia Climate Law

EPA of a 2015 rule barring replacement of ozone-depleting substances with hydrofluorocarbons (HFCs), which are powerful greenhouse gases. Circuit vacated the 2015 rule to the extent that it prohibited continued use of HFCs by companies that previously switched to HFCs from an ozone-depleting substance. In Mexichem , the D.C.

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