Tornadoes and Floods Underscore the Costs of Global Warming

Morning dawns on the destruction left behind from the killer tornado that tore through Joplin, Missouri The current wave of tornados and floods are a small preview of what life will look like in a world ravaged by global warming. The US Global Change Research Program has warned of more extreme weather events in the future as the planet gets warmer.

When it comes to tornados, 2011 is proving to be the deadliest and most destructive year ever. The tornado that hit Joplin on May 22 was the single deadliest tornado in US history. The southern state tornados that touched down between April 22 and 28 are likely to surpass 2004’s Hurricane Ivan as the costliest natural disaster in Alabama’s history.

On May 24th 2011 we witnessed one of the largest geographical regions of high tornado risk in American history. This is the fourth such high risk day this year, meaning the fourth day where there are ideal conditions for the widespread formation of tornados. Each of the 3 previous high risk days spawned at least 52 tornadoes.

Although the total number is still unknown, many deadly tornados touched down on May 24th. In Oklahoma large, violent tornados touched down around Oklahoma City south of Hinton. Significant tornado related damage was reported near Canton and in Goldsby. Other tornados were reported in Dewey and Blaine counties as well as Logan County including the city of Guthrie. A tornado was spotted on the ground just Northwest of Joplin. The suburbs of Dallas just east of Euless and Lindell, Virginia also reported tornados.

Tornados are not the only natural disasters that are stealing headlines in 2011. The Midwest and the South are once again in the middle of record floods. The Mississippi River grew six times its normal size and police were forced to evacuate parts of Memphis. The floods have produced the highest water levels on record for the 70-mile stretch between Missouri and Tennessee.

Flooding could cost $2.2 billion in damage to more than 21,000 homes, according to analysis by research firm CoreLogic. The flood has also interrupted commerce along the Mississippi River. Flooding along the Mississippi was caused by large snowfalls in the upper Midwest this winter and a lot of precipitation in April, where up to four times the normal amount of rain fell in some parts of the region.

It is well known that isolated extreme weather events do not prove the existence of climate change. However, the floods and tornados we are seeing in the US are statistically anomalous and can be understood as evidence supporting global warming. Increases in snow and rain caused the flooding and increased precipitation is tied to climate change. Meteorologists are saying that increasing ocean temperatures in the Gulf of Mexico are spawning the tornados. (When warmer water in the Gulf evaporates and meets with colder air from the north you have a combination that spawns strong winds, violent precipitation and tornados).

The central plains states like Oklahoma, Kansas and Missouri can expect more tornadoes. However, the extreme weather is not limited to tornado alley; a lesser risk is also present in the Midwest all the way through the Ohio Valley to the East Coast. Storms are expected over much of the US from the Northeast all the way down to Mexico.

As reported in the Insurance Journal, “The spring of 2011’s tornadoes have been some of the costliest, and deadliest, in US history,” said Dr. Robert Hartwig, an economist and president of the I.I.I. According to the National Oceanic and Atmospheric Administration’s (NOAA) National Weather Service, the US averages 1,200 tornadoes a year, but as of May 17, 2011 we had already seen 1,076, with 875 of them occurring in April. The 70 tornadoes that were reported in seven Midwest states over the weekend of May 21-22, and the tornadoes on May 24 should push us over 1,200 with over 7 months remaining in 2011.

tornados can be deadly and 2011 is on track to be the deadliest year ever for tornado-related deaths in the US with about 482 fatalities so far. It is obvious that floods and tornadoes have dire consequences for human life and the economy. In addition to the human toll, thousands of commercial buildings, homes and apartment complexes have been destroyed by floods and tornadoes.

The tornado that devastated Joplin, Mo. killed at least 117 people (1500 people are still missing). According to an estimate from catastrophe risk modeling firm Eqecat Inc., the Joplin tornado caused up to $3 billion in insured losses. Joplin is a city with an estimated 25,000 buildings out of which 2,500 buildings were destroyed and approximately 10,000 were damaged.

In April, three severe storms ripped through the Southern states, the most serious storm featured 178 tornadoes and killed at least 300 people, many of them in Alabama. According to risk modeling firm AIR Worldwide, the southern state tornadoes that touched down between April 22 and 28, caused up to $5.5 billion in insured losses. Risk Management Solutions, another risk modeling company, estimated the total insured loss figure could climb as high as $6 billion.

The Insurance Journal indicates that tornadoes have caused $97.8 billion in insured losses in the US between 1990 and 2009, making these weather events second only to hurricanes ($152.4 billion) over this same time period as the costliest natural disasters. In the past three years (2008-2010), severe thunderstorms, and the tornadoes they spawned, have caused about one third ($30 billion) of that $97.8 billion total.

On Tuesday May 24th, a house committee approved an additional $1 billion to help federal emergency crews respond to the devastation from natural disasters across the South and Midwest. However, Rep. Robert Aderholt, R-Ala., chairman of the Homeland Security Appropriations Subcommittee told Fox News that he wants to pay for the FEMA infusion by pulling $4 billion from the Department of Energy loan program to facilitate green technology.

Aderholt’s logic is fundamentally flawed, he completely ignores the fact that there is a great deal we can do to preempt some of the worst weather related catastrophes. Rather than just pay for disaster relief we can invest in green technology and minimize the extreme weather caused by climate change.


Richard Matthews is a consultant, eco-entrepreneur, green investor and author of numerous articles on sustainable positioning, eco-economics and enviro-politics. He is the owner of THE GREEN MARKET, a leading sustainable business blog and one of the Web’s most comprehensive resources on the business of the environment. Find The Green Market on Facebook and follow The Green Market’s twitter feed.

Enhanced by Zemanta

Image credit: KOMUNews, courtesy Flickr

Richard Matthews
Richard Matthews
Richard Matthews is a consultant, eco-entrepreneur, sustainable investor, and writer. He is the owner of THE GREEN MARKET, one of the Web’s most comprehensive resources on the business of the environment. He is also the author of numerous articles on sustainable positioning, green investing, enviro-politics, and eco-economics.

Get in Touch

  1. 1974 had the deadliest tornado and htere is no tred in tornado frequency that relates to warming temperatures. You undermine your cause with garbage that is presented in this article.

    • Hay Tom – calm down. You did actually read the article right? Why don’t you tell us exactly what the “garbage” is in Richard’s article and back your bluster with something besides mindless anger?
      Cite a source, we’re all listening. I wonder if you are.

  2. You clearly did not bother to read the entire article. Nonetheless I have provided some additional sources to help you with your confusion.

    The World Weather Post reports that tornados for the year 2011 show that “this year is probably already the busiest tornado season on record for this point in the season.”

    AccuWeather reports that warmer temperatures in the Gulf of Mexico are one the factors contributing to the record setting number of tornados. “Sea surface temperatures across the Gulf of Mexico have been warmer than normal for about a month and a half. Warm, humid air is a necessary ingredient for severe thunderstorm development, and the Gulf of Mexico is a major supplier of it. The warmer sea surface temperatures are across the Gulf of Mexico, the more warm and humid the air is above it.”

    A May 24th Mother Jones headline reads, “Warmer Oceans Fueling Tornadoes.”

    CBS News reports that the Joplin tornado of May 22, 2011, was “the single deadliest tornado since 1950.”

    By the way the only one that seems angry is you.


Please enter your comment!
Please enter your name here

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Related Articles

Get in Touch


Latest Posts