[philjw]

This needing a study is like the discovery in Idiocracy that soil needs to be watered with water, not Brawndo's soft drink.

Plant trees, not ACs...

North America's greed for energy resources is just bonkers from an outside perspecive.

[dfxm12]

No. Different types of trees provide different amounts of cover and different types of trees thrive in different climates. Las Vegas does have a particular climate that will make supporting some trees not worth the effort. Vegas also has a particular layout where most of the pedestrians are expected to be.

The abstract does lay this out pretty well.