Urban beekeeping in New Mexico's largest city.
Honeybees don't link up with sustainability in quite the way a lot of people think they do.
They can outcompete native bees, who in many cases are flower-species specific; if that one species of flower disappears for one reason or another, then that species of bee may too.
As generalists, honeybees can much more easily find an alternative food source if one disappears.
Also, they tend to thrive on non-native plants, which recently caused a bit of an uproar after the seed packets that Cheerios and The Xerces Society distributed (the very same seed mixture that the Sierra Club distributes in their bee seed packets)
The Feb 2016 issue of Bee Culture has great article in defense of non-natives in order to support honeybees, which is a message that I think sustainability-type generally oppose.