Reality is always distorted by politics, and the discussion of solutions to the changes in earth's climate are a good example.
The climate is changing. The overall temperature of the earth is getting warmer, and rapidly. This is not happening in a year, but over decades. The measurements are statistical but the trend seems clear and dramatic.
Why is this happening? In the 1970s, an ozone depletion theory was the proposed answer, still considered by some https://ozonedepletiontheory.info/why-warming-stopped/ https://climate.nasa.gov/faq/15/is-the-ozone-hole-causing-climate-change/ This theory has generally been replaced by the proposal that fossil fuel changes in the atmosphere create a "greenhouse effect". https://climate.nasa.gov/causes/ https://www.nrdc.org/stories/fossil-fuels-dirty-facts https://www.un.org/en/climatechange/reports It is important to understand that this is a theory, an explanation of the changes based on observations, correlations, and assumptions. Are properties of the earth a factor? Does climate shift in this way
due to variations in solar energy, or cycles of ice formation, etc? Opponents can find indications and data that do not support this theory. That is inevitable in scientific discovery.
But this is not just about proving a scientific theory. The changes in the earth's temperature and related changes in climate are altering the distribution of plants and animals, the location of arable land suitable for growing food, and the distribution of water supplies. These are measurable changes in the earth, whether or not they are the consequence of the use of fossil fuels. The test of the importance of the role of fossil fuels would be the dramatic reduction in atmospheric changes and an associated change in climate. This is unlikely to be possible. Use of fossil fuels is directly related to economic development, and sustained economic advantage. It does not appear that any country with significant fossil fuel resources will forego use for the sake of the survival of the earth. Statements by oil companies, etc. to the contrary are marketing distractions to confuse consumers. And it may not work! The climate changes may have progressed too far, and cyclical shifts are already occurring. Or the reversals may occur but be much slower to reset the climate. Human experience is generational roughly 20-40 years, and so is political thinking. So these climate changes are too slow for normal human thought processes. COMMITTING TO THE CHANGES IN ATMOSPHERE BASED ON FOSSIL FUEL AND OTHER POLLUTION IS A TRANS-GENERATIONAL COMMITMENT. This is very difficult to accomplish in political terms.
Instead the focus in reporting and promoting is on natural disasters and animal extinction. Problems in the distribution of food and water have already given rise to migrations toward regions with more opportunity (though not always with regard to future climate issues). Natural disasters are another source of confusion. Tornadoes, hurricanes, floods, and fires are recurring natural events that may be exaggerated by changes in climate. (The data to assert this is incomplete.) But the reality is always the same: When humans build dwellings in regions of high risk for natural disasters the dwellings are damaged or destroyed and the lives are altered. The location of the disasters is statistically predictable, yet humans return to the same sites to rebuild despite knowing the damage will return. The fantasy of owning a piece of the earth interferes with the reality of recurring destruction from natural disasters. The emphasis on animal extinctions is another example, to be considered in another blog.
Humans have relatively little political or personal control over climate change and natural disasters. By contrast we have a significant ability to manage the pollution of the earth and sea with toxic substances, avoid living in disaster prone areas, and set aside regions of territory for maintaining some persistence of the previous environmental patterns (i.e. "wilderness" whatever that means).
No comments:
Post a Comment