It is invasive species awareness week. This article from the National Park Service provides some information about the consequences of invasive species and how it may impact your experience when enjoying the great outdoors.
Invasive species present a real environmental and economic threat. Whether that is through crop predation, biodiversity loss, or reductions in ecosystem services. Human activity, whether travel, adoption of exotic pets, or international trade, is a primary vector of invasive species dispersal and as such it is our responsibility to try and reduce the impacts of these harmful non-native species.