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Tuesday, 2 November 2021

Will 1.5 degree C kill our planet?

I am not that pessimistic about the end of our planet. Such prediction is as inaccurate as that caused by the Millenium Bug, and the running out of space on the Aztec Calendar to make further projection.

I am not a climate scientist, neither am I an expert in the field of iceberg. However, I am certain that the sea level increase has been exaggerated. By applying Archimedes' Principle, the rise in water is equivalent to volume of melted iceberg above the sea level divided by the total surface area of the Earth. The portion of iceberg submerged in water, about 60% of the total volume, is a non-issue, because whether it is in the state of solid ice or liquid water, the volume us almost identical.

Low lying areas will be under water, especially some islands created by under water voluncantic eruption, but large areas of arid land mass, about 41% of earth's surface, including the deserts and dried up inland seas will be awashed by the rising water, and flourish again. Many rivers, including the Australian Murray Darling River, will not run out of water again, no matter how severe the drought may be.

Furthermore, many artesian wells or water tables will be filled, and some of the big cities around the world will return to the original ground level. These include Bangkok, as well as Venice.

As human population continues to increase, this newly rejuvenated productive land will be able to support more lives, both fauna and flora.

Reducing carbon emission solves only half or may be less of the problem. The total amount of atmospheric carbon dioxide is compounded continuously, and therefore more carbon sinks are required to remove the existing carbon dioxide from the atmosphere as well as the additional emission. The most obvious and the primitive method that can do the job is photosynthesis, carried out by plants as well as algae.

Some of the "reclaimed" land will turn into forests probably bigger than all the existing forests in the world combined. Only nature can perform such miracle to create the forests which in turn create the carbon sink.

If the temperature is to increase by 1.5 degrees, will some of the living things perish? Human beings definitely will survive without any problem. In many places, including Melbourne, the daily minimum and maximum temperatures can vary by more than 10 times, and yet hardly anyone dies of such variation. Air transport makes human beings more resilient and adaptive to temperature change.

If Charles Darwin's "theory of evolution by natural selection" is still valid in time to come, it is inevitable that some species will perish, and new species evolve.