Global Warming – Natural vs. Manmade Causes Compared By NASA


VideoFromSpace

Published on Nov 7, 2016

When you compare possible natural causes (orbital, solar and volcanic activity) over the course of the last 100+ years, to possible manmade causes (aerosols, deforestation and greenhouses gases), the winner is clear. Greenhouse gases directly correlate to an increase in Earth temperature. Credit: NASA/GSFC GISS

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