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Future of Humanity – Part 2 of 2 – Environmental Scenarios

Future of Humanity – Part 2 of 2 – Environmental Scenarios

Many people have the idea that the earth is going through a warming period. The data released by NASA from their website seems to back up these people’s thinking. According to their data, the last five years have been the hottest years on record. These hottest years occurred in the past 10 years, and the last 20 years.

The hottest years in the database happened in 1884, 1940, 2005, 2003, 2005, 2008, and 2005. The lowest years in the database happened in 1884, 1940, 1973, 1982, 2002, and 1973.

What is causing this warming? The temperature data does not show evidence of an increase in sunspot activity, nor does it show evidence of the sun having a small cycle. So what is the cause? Global warming due to the buildup of greenhouse gases in the atmosphere is the prime cause. The greenhouse gases that are causing global warming are CO2, water vapor, methane, nitrous oxide, and ozone.

The temperature data shows that the buildup of these greenhouse gases has reached about the 1,000 parts per million mark, and is still rising. Methane is the second largest greenhouse gas behind carbon dioxide. Methane is produced from human activity through both natural and human-made industries. According to NASA, “the livestock sector accounts for about 18 percent of anthropogenic emissions, but manure from ruminant animals accounts for 67 percent of anthropogenic methane emissions from manures, residues, feeds and digesters.” Therefore, the methane produced by human activity is a major contributor to the greenhouse gas buildup in the atmosphere.

What are some of the other consequences of the global warming caused by the buildup of greenhouse gases in the atmosphere? Temperature is changing faster than it has in hundreds of years. The winters are getting colder and longer. The summers are getting hotter and shorter. The temperature changes will continue as the greenhouse gases in the atmosphere build to their boiling point. That boiling point is about 30 degrees Celsius. That translates into more temperature changes in the atmosphere. An increased temperature difference in the atmosphere results in increased evaporation from the surface. The heated air will rise faster and more significantly. Also, increased evaporation from the atmosphere will increase precipitation.

What results from the accumulation of more heat in the atmosphere? The satellite data does not show evidence of a giant ice island in Antarctica. Ice islands are floating areas of ice that form in the polar ice caps. These floating ice islands are drained by strong winds. The ice islands float upward. The surface of the ice caps does not appear to be moving much in the satellite data. Furthermore, satellite data does not show evidence of melting of the ice caps. This is a strange result because melting of the ice caps should result in rising sea levels. And, those rising sea levels should result in the inundation of coastal areas with salty seawater. It is hard to reconcile these anomalous results.

The climate scientist lead by Hansen does not expect that the surface of the ice caps will rise very much in the near future. But he does anticipate that the ice caps will continue to melt. And in about 50,000 years from now, the ice caps might be completely melted. That is, the surface of the ice caps will be raised by the rising sea levels. That’s the end of the world as we know it.

And, that is not all. The climate scientist also predicts that the surface of the ice caps will be inundated with salty seawater. During the end times, the oceans would be saturated with salt seawater. This will kill everything that lives in the oceans.

According to the satellite data, the oceans have been getting saltier in the polar regions of the world. That is, in the Arctic Ocean and in the Antarctic Ocean. The IPCC prediction is that the polar oceans will be inundated with salt seawater from the rising sea levels. And, that is a prediction which cannot be verified.

In addition, the IPCC predicts that the ocean currents will also be disrupted and too little fresh water will reach the equator, thus further damaging the oceans. The IPCC predicts that tropical storms and hurricanes will become more severe, more frequent and heavier in frequency and greater in intensity. The predicted destruction of property is the greatest threat to human civilization.

We might say that the current human civilization is the least damaged. As of 2012, we still have much to learn and much to protect. We should learn from the past glacial and interglacial periods. We need to learn from the events of “time is running out.”)

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