There are a small number of things I personally feel that are contributing to the increase in Human / Wildlife interactions. As 83% of all statistics are made up (including that one), I will stick to personal observations.

1) More folks are new to getting out in the woods. As such, they are less experienced in staying safe. Example: Don't try to pet the baby bear, mom will not like it.

2) We as a species are eliminating habitat at an alarming rate. Move into the bear area, expect to meet the neighbors.

3) There is less hunting, so the game multiplies, offering more chances for human interaction.

There are more, and these do not apply in all situations, but it is what I have noticed.