Global Warming Issue

There can be no rational question but that our planet is experiencing a period of global warming. The data shows that warming is growing daily, but research is also showing that this is not an unusual situation. In the past, there have been periods of global warming far greater than what we are experiencing now. However, humans were not a part of the global warming issue then, but they certainly are involved today.

In the geologic period known as the Pliocene, carbon dioxide levels were similar to today’s. They trapped heat and raised global temperatures higher than what we are experiencing now. Temperatures in the Arctic were as much as 19 degrees Celsius higher than today. This warmth allowed changes in the living systems that were around at the time. In the Arctic, forests grew, and mammals like horses and camels became abundant. Wildfires roared across the landscape spewing soot into the air which further altered the climate of the area.

We are now seeing fires around the world which can alter climate. Russia had a fire that burned 283,280 square kilometers in 2012. In 2015 there were 20,230 square kilometers burned in Alaska. California has been experiencing some of the worst fires on record. Wildfires have broken out in Greenland, which is unusual. Scientists are investigating how soot from the fires is affecting the climate of the region.

We can learn a lot about our future by studying what has happened in the past. We must add human influence to the picture, but we need to avoid buying into the views of extremists on both sides of the global warming issue.
–John N. Clayton © 2017
Data from Science News, December 9, 2017.