Google Alert - Science

	Science As-it-happens update ⋅ September 28, 2016
	NEWS
	Earth's CO2 levels have permanently crossed the 400ppm threshold Engadget Despite the fact that September is typically the lowest month for atmospheric carbon dioxide, the CO2 levels in Earth's atmosphere crossed the symbolic 400 parts per million threshold this month. Flag as irrelevant
	Black moon rising: Rare lunar event to occur this Friday Christian Science Monitor This week's black moon is the latest in a slew of seemingly special lunar events - blue moons, blood moons, supermoons and more. Flag as irrelevant
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