Aliens destroying our planet

In many of my previous blog entries, I have tried to justify why humans are aliens on earth. Here is yet another reason. It is our indifference to this planet that always makes me wonder if we belong to this place.

Earth is a unique planet, because of its ability to sustain life. Earth formed at the same time as rest of the 8 planets and yet life found its way only on earth. Earth is the only suitable place in the solar system to sustain life – neither too close to sun nor too far, making it just the ideal place. Mercury is too close to the sun and too hot. Even if water was on Mercury it would have long ago evaporated. Venus also is too close to the sun to have any surface water. Mars on the other hand is too far away from the sun, making it too cold for any water in liquid form. So, the conditions happen to be just right here on our planet Earth. It is just the right distance from the sun. Our Earth is of perfect size and the heat is neither more nor less, to keep water neither all frozen nor all gas.

Earth, as we all know today, was not always inhabitable. It took millions of year to have an atmosphere that can support life; otherwise earth’s atmosphere had only CO2. In those millions of years life evolved from one cell amoeba to a multi cell and more complex organisms, and then came humans.

Since then the rise in CO2 level is increasing. With each passing year we are producing more and more CO2. The CO2 generated in last 40 years is more than double of the CO2 generated in last 10000 years. The time is not far when there will be no ice on the poles, because of global warming.

Related
How much alien are we?
Humans are Aliens on this ‘Animal Planet’ – Part 1
Humans are Aliens on this ‘Animal Planet’ – Part 2

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