As hundreds of tornadoes blasted across the midwest this past week, the impact of climate change popped up in a more mundane but perhaps significant way in two New York Times articles about room temperature. A recent study found that energy consumption increases as you get older, especially quite old, meaning a lot older than I am right now. Another study showed clearly that women and men perform cognitively very differently depending on the temperature. Both of these studies suggest our battles over the up and down arrows on the thermostat are just beginning.
Over 70? Never Be Without a Snuggie
A study published in Energy Research and Social Science looked at the use of energy stratified by age, including impact from variables of income and housing size. The data from 1987 to 2009 used pseudo-cohorts, a sciency way of saying that the study was designed to look at age groups that changed over time. In other words, they looked at energy consumption by age, and they followed those age groups for about twenty years.
Apparently young people don’t use as much household energy, most likely because they run around and live in small rooms, like dorm rooms. Multi-person families buy bigger houses, so that the entire family uses relatively more energy, which seems to pick near age 50. Energy use then decreases, but starts to drive upward again after age 70.
When the researchers added income to the model, the upward slope tipped even higher, meaning that having more income when you’re older magnified the impact. This wasn’t true for those under age 30, though. Whether income was included or not, people in their twenties don’t use as much energy, whether they can afford it or not. A lot of the increase in use as people get older was due to housing size, though not all of it.Continue reading “War Over the Thermostat”