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#timelapse
#google
#landsat
#landscape
#science
#computer
#carnegie mellon
#university
#cloud
#planet
#earth from space
#the earth story
#ft mcmurray
#canada
#alberta
#tar sand
#bitumen
#environment
#science
#pollution
#canada
#athabasca
#tar sand
#geology
#nature
#landscape
#the earth story
#polycyclic aromatic hydrocarbons
#carcinogen
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