Tag Archives: hurricanes

Climate Change, Weather Change

Climatology is meteorology writ large. They are really just different branches of atmospheric science. If you want to know whether it is likely to rain tomorrow talk to the weatherman who is a meteorologist. But if you want to know about what the weather will be like in a number of years, you should consult a climatologist.

As I write the water has yet to drain out of the east Texas area where Hurricane Harvey caused the greatest rainfall event ever in United states (over 50 inches of rain.) Meanwhile, there are three hurricanes off our shores. These are weather phenomena which are impacted by climate. Climate change of necessity causes weather changes.

Hurricane Irma is the most intense Atlantic hurricane ever. It appears to be on a collision course with Miami Beach. If it veers slightly to the west the Carolinas are threatened. Right behind Irma is Jose streaming in our direction from the east. Hurricane Katia is stewing off the coast of Mexico with little indication of movement.

Meanwhile on our west coast earlier this year we saw record flooding and now a severe heat wave and wildfires from Los Angeles to Vancouver.

Is this normal? Or is the the new normal if climate change is factored in? There is uncertainty in blaming any one event on global warming. Realistically that can’t be done. But let me analogize if I may. Mark McGuire was a major league baseball player. Much of his success at home plate he later admitted was due to his use of performance enhancing steroids. Just one example, from 1996 to 1999 he led the league in home runs.

So here is the question: Can we attribute any one of those home runs to steroid use? Not really. What we can say is the muscle mass developed due to his steroid use greatly contributed to his success.

Adding Carbon Dioxide to the atmosphere from burning fossil fuels is like providing steroids to an athlete. The added CO2 causes heat to be trapped in the atmosphere which which causes warming, but also creates a more dynamic atmosphere. More droughts occur because it’s hotter. More intense rainfall events occur because a warmer atmosphere holds more water.

Hurricanes are driven to large degree by the warmer ocean water, clearly demonstrated by the summer/fall hurricane season when the Atlantic is naturally warmer. Make it warmer still from global warming and you get Irma, the strongest Atlantic hurricane ever.

The concentration of Carbon Dioxide in the atmosphere is now higher (407 ppm) than it has been for at least 2 to 4 million years. Other heat trapping gasses such as Methane and Nitrous Oxide are also at all time highs. Yet there are those, in fact whole political parties, which deny anthropogenic climate change even in the face of rising seas, melting ice, and intensifying storms.

The United States contributes 20% of the heat trapping gasses to the atmosphere, but only constitute about 5% worlds population. Every scientific body on the planet including all major science organizations in the United states agrees that climate change is a threat and needs to be addressed. Our government is alone among the nations of the world in our refusal to address global warming. ALONE.