Roof racks wasted 100 million gallons of gas last year
Researchers from Berkeley Lab and the National Renewable Energy Lab teamed up for a first-of-its-kind study that looks at the environmental impact of roof rack use in the US. The group relied on a wealth of data, including forums, highway video surveys and crowdsourcing.
According to the study, published in the journal Energy Policy, roof racks were responsible for 0.8 percent of annual light-duty vehicle fuel consumption in 2015. While that might not sound like much, it amounts to about 100 million gallons of gas, just to move roof racks down the road. It's only going to get worse, as well, as the study estimates roof rack use will increase by 200 percent by 2040.