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I think the music "EARTH SONG" by Michael Jackson is quite beautiful, and shows how awful man has been to this planet, especially in the last 50 or 60 years, when we developed atom bombs, missiles, coal & nuclear power plants, that totally pollute our air & water. In the process we destroyed thousands of forests, crop lands & beautiful lakes, rivers & streams. We have instead billions of acres of concrete & steel, & asphalt, that poison the atmosphere. Where do they think OXYGEN comes from? It comes from green plants, from all of their leaves.
Now whatever we have not destroyed by building huge cities, we have destroyed by polluting the air with auto exhaust, power plants, coal mines, factories, do prescribed or controlled "burns" in the forest, and possibly the largest cause is WAR, which uses tons of jet fuel, drops thousands of bombs, burns up whole cities, spreads jet-fuel pollution, & generally destroys a whole country in a matter of hours, if you drop enough bombs.
The Jackson video ("Earth Song") shows how beautiful jungles full of exotic animals & gorgeous flowering plants, & graceful zebras, & giraffes, & grazing elephants, were all destroyed by WAR, & slaughter for tusks, cutting trees for lumber, etc. Whole villages burned for tribal revenge.
It happens every day, but now, we can fly there much faster, do much more destruction in a week, than we used to do in DECADES. Now we are
making bigger wars, utilizing armies & bombers from many nations, which MULTIPLIES all the effects a hundred-fold. And nobody is looking at the world-wide atmospheric contamination & the damage it does to our environment. Talk about Global Warming ??? What we are doing right now, to fight ISIS, is a million times worse than Global Warming. It has the POWER to destroy Mankind (& all LIFE) right off of this planet.