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We are keepers of the biosphere, and our judgment day will assess how well we did.

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I cannot help but think that, like humans, birds are happier when they are well fed. 

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When Science Informed Policy

Speaking against the alternative facts of the contrarians has now reduced scientists to the status of a special-interest group.

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Dare to Doubt: 20 Climate Change Facts for Deniers

Carbon dioxide is rising as a component of Earth’s atmosphere (NOAA, 2017). The level of carbon dioxide in the atmosphere has not been this high for the past 5 million years (Stap et al. 2016). Beginning about 10,000 years ago and extending to the advent of the Industrial Revolution, carbon dioxide in the atmosphere was roughly constant, indicating that natural sources were well-balanced by removals from the atmosphere (Fluckiger et al. 2002). The current rise in carbon dioxide is due to human activities, especially combustion of fossil fuels (Hofmann et al. 2009). Carbon dioxide is a “greenhouse” gas, inasmuch as it […]

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Your Water on Drugs

It is likely that the organisms in many streams across the U.S. are bathed in a weak solution of birth control pills, caffeine, hypertension blockers, and lithium. 

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Some Thoughts for the New President

Scientists are not merely a special interest group.

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Hydrofluorocarbons—yet another greenhouse gas

The countries of the world agreed to limit HFC emissions over the next 30 years, making a huge contribution to the eventual success of the Paris Climate Agreement.

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