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asm.org | ||
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www.epa.gov
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| | | | | Information related to Learn about Harmful Algae, Cyanobacteria and Cyanotoxins | |
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science.nasa.gov
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| | | | | A quarter to half of Earth's vegetated lands has shown significant greening over the last 35 years largely due to rising levels of atmospheric carbon dioxide. | |
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co2coalition.org
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| | | | | By Gregory Wrightstone People should be celebrating, not demonizing, modern increases in atmospheric carbon dioxide (CO2). We cannot overstate the importance of the gas. Without it, life doesn't exist. First, a bit of history: During each of the last four glacial advances, CO2's concentration fell below 190 parts per million (ppm), less than 50 percent of our current concentration of ... Read more | |
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climateactiontracker.org
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