In the air there is too much co2 which is causing cracks in the ozone layer (2nd sky) above the Earth. If the cracks increases more for pollution, we may experience more foreign objects (i.e. asteroids, metiors etc) coming to the land from the 3rd sky.  Save the world. Save the atmosphere. Reduce co2 from the air. Plants trees. Reuse and recycle.

Nature’s song