The well respected Mineta Transportation Institute released a report this week on its investigation into what constrains people from choosing sustainable vehicles.

By sustainable, they mean those electric hybrid vehicles that you plug into the wall and allow you to pass by the gas station most of the time.

The report’s authors, Dr. Bradley Flamm from Temple University and Dr. Asha Weinstein Agrawal of San Jose State, said our stated concerns about the environment don’t usually make it into the showroom.

“Though most Americans hold pro-environmental attitudes, their behavior toward vehicle ownership doesn’t always reflect that," Flamm said. "Significant constraints appear to prevent them from buying smaller, more fuel-efficient, less-polluting vehicles."

The bottom line findings of the study: environmental concerns rarely dictate our choice in automobiles.

But all that is changing. As gas prices continue to soar and experts predict us hitting that $5 per gallon level, and per most of us will crash through any barriers we may see in front of us to buy a car that is fuel efficient. And if that means it is also better for the environment then color us all green.

I drove a company SUV to a meeting in Park City this week and it was sitting on empty when I took it out of our parking lot. Filling up that tank cost about $80. I assure you that if I had a big SUV at home I would shed a tear every time I approached the pump.

I would want "sustainable" as much as I desire chocolate.

David Fierro is a communications consultant who resides in Salt Lake City. He specializes in transportation and produces the Utah Transportation Report