Got scientists and engineers on your holiday shopping list? Take five and check out our top gift ideas. NAP books and merchandise make thoughtful gifts for thinking people.
Climate change is occurring. It is very likely caused by the emission of greenhouse gases from human activities, and poses significant risks for a range of human and natural systems. And these emissions continue to increase, which will result in further… |
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Climate Stabilization Targets: Emissions, Concentrations, and Impacts over Decades to Millennia Emissions of carbon dioxide from the burning of fossil fuels have ushered in a new epoch where human activities will largely determine the evolution of Earth’s climate. Because carbon dioxide in the atmosphere is long lived, it can effectively lock the Earth… |
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Ocean Acidification: A National Strategy to Meet the Challenges of a Changing Ocean The ocean has absorbed a significant portion of all human-made carbon dioxide emissions. This benefits human society by moderating the rate of climate change, but also causes unprecedented changes to ocean chemistry. Carbon dioxide taken up by the ocean… |
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Understanding Earth’s Deep Past: Lessons for Our Climate Future There is little dispute within the scientific community that humans are changing Earth’s climate on a decadal to century time-scale. By the end of this century, without a reduction in emissions, atmospheric CO2 is projected to increase to levels that Earth… |
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Understanding Climate’s Influence on Human Evolution The hominin fossil record documents a history of critical evolutionary events that have ultimately shaped and defined what it means to be human, including the origins of bipedalism; the emergence of our genus Homo; the first use of stone tools; increases in… |