Loss and hope: US park rangers' climate crisis fight
Indiana Dunes National Park and Glacier National Park (United States) (AFP) - American biologist Laura Brennan describes the coin-sized Karner blue butterfly as "very delicate and graceful" with a "lovely blue" coloring and "just a little speckling of orange." The species, declared endangered in 1992, used to flourish in Indiana Dunes National Park, where Brennan has worked for two decades. But the butterfly is now believed to have disappeared entirely from the midwestern US park -- becoming a victim of rising temperatures fueled by human activity, among other stressors. Brennan and thousands ...