Environmental impact of humans.

After reading various threads and articles, I’m hoping to find a list of the top ten or twenty worst things a person can do for the environment.

I’ve heard that buying a suburban house, having a child, driving an SUV, eating meat, etc, etc… are all the worst thing, so I’d love to see an official list, or a study that weighs our actions and their impacts. For example : eating meat is better for the environment than driving an SUV, or catching the bus is the fiftieth worst thing you can do, but is better than every other mode of transport, other than walking. Or even just the top five actions that humans can individually do in order of their impact.

Surely there are lists or studies out there ? Google didn’t help me, so if you do find the info through Google, please also include the search terms (always trying to better my googling!) it would be much appreciated.

Thanks