When you compare possible natural causes (orbital, solar and volcanic activity) over the course of the last 100+ years, to manmade causes (aerosols, deforestation and greenhouses gases), the winner is clear.
The post Global Warming – Natural vs. Manmade Causes Compared By NASA | Video appeared first on Scout SEO- Melbourne Internet Marketing.
from Innovation and Digital Marketing http://www.livescience.com/56774-global-warming-natural-vs-manmade-causes-compared-by-nasa-video.html?utm_source=rss&utm_medium=rss
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