Two interesting stories today on the climate change front.
The first delivers a deserved smack down to the the deniers who have lately insisted that the world is cooling, not warming. The Associated Press had several statisticians study the data. They didn't tell them what the numbers were, just gave them the raw numbers. And guess what? The only way to find a cooling trend is to gimmick the numbers. All of the statisticians agreed the data reveal an increase in global temperature over time.
The AP sent expert statisticians NOAA's year-to-year ground temperature changes over 130 years and the 30 years of satellite-measured temperatures preferred by skeptics and gathered by scientists at the University of Alabama in Huntsville.
Statisticians who analyzed the data found a distinct decades-long upward trend in the numbers, but could not find a significant drop in the past 10 years in either data set. The ups and downs during the last decade repeat random variability in data as far back as 1880.
Saying there's a downward trend since 1998 is not scientifically legitimate, said David Peterson, a retired Duke University statistics professor and one of those analyzing the numbers.
Identifying a downward trend is a case of "people coming at the data with preconceived notions," said Peterson, author of the book "Why Did They Do That? An Introduction to Forensic Decision Analysis."
I doubt this will change many hard-core deniers' views. For them, it is easier to pretend the world conforms to their beliefs than to actually confront the science and make the tough choices.
For those of us with a reality-based view of reality, what to do? Well that brings us to story No. 2. (Hat tip to Slashdot on this one.)
Two researchers in New Zealand studied the effects of household pets on the environment. Based on how much energy and land it takes to feed them and other factors, they conclude a large dog is responsible for as much carbon emissions as an SUV each year. Cats are less, around as much as a Volkswagen Golf. Two hamsters come in around a plasma TV and a goldfish contributes to global warming about as much as two cell phones.
The researchers conclusion: Get rid of your dogs and cats in favor of edible animals like chickens and pigs. Their forthcoming book no doubt has more details. It's called Time to "Eat the Dog: The real guide to sustainable living."
I don't see that one happening.