Peer-Review Process Confirms Contrails Climate Effect

An anonymous reader writes: "According to NPR, researcher David Travis (who was mentioned in two previous articles has been published in today's issue of nature as confirming jet contrails effects on the earth's climate. The publication of this paper in arguably the most prestigious peer-reviewed scientific journal of all should help serve to assuage the spurious doubts many slashdotters voiced back in May."

Comments

Repeatability?

[U96]

I could agree that contrails are bad and I'm willing to acknowledge that global warming is a problem, but I'm worried that there's some bad science happening here. Maybe I've missed something, but just because the temperatures where different on those 3 days from averages during the same month over the past 23 years, how can you assume this was caused by the absence of the contrails? Wouldn't you need to be able to repeat the experiment several times before you could rule out a fluke? "Travis's team compared the average daily high and low temperatures over North America from 11 to 14 September 2001, with climatic records from 1977 to 2000, matching the weather over those three days with similar weather in September from historical records."