Roger Pielke Jr. recently published an article in Nate Silver's new 538 website titled Disasters Cost More Than Ever But Not Because of Climate Change. You should click the link and read his entire piece but, his thesis is essentially the following:
- The cost of disasters tied to extreme events is indeed rising rapidly - but once you normalize this to the increase in the wealth of the world as represented by global GDP (we own a lot more "stuff" now than before) - the trend basically vanishes
- Disasters lead to high loss of life where property damage is the lowest and highest property damage in places with lowest loss of life. As examples he cites the following: "U.S. hurricanes, for example, are responsible for 58 percent of the increase in the property losses in the Munich Re global dataset" and "Consider that since 1940 in the United States 3,322 people have died in 118 hurricanes that made landfall. Last year in a poor region of the Philippines, a single storm, Typhoon Hayain, killed twice as many people."
- Richer countries are in a better position to protect people's lives in times of disasters at the expense of higher property losses. He says: "As countries become richer, they are better able to deal with disasters — meaning more people are protected and fewer lose their lives. Increased property losses, it turns out, are a price worth paying"
His article was roundly criticized by some well known climate scientists, as summarized by Emily Atkin at Think Progress (additional discussion in this post by Laurence Lewis at Daily Kos). The crux of the criticism as I see it:
- Improvements to deal with disasters (e.g., newer building codes and improved construction, better forecasting, better preparedness and responses) over the years reduces disaster damages/costs (lives and property) and this is not properly reflected in Pielke's assertions - this has been pointed out to him before, yet he continues to publish his misleading claim
- Unlike Pielke's claims that somehow climate change is not causing an increasing frequency of extreme events, there are several situations where this is in fact the case
Pielke responded to these critiques in an email to Think Progress (same link as above):