The Monarch butterfly is one of the best known species that's in decline.
Wide open spaces, like much of Wyoming, are known to be strongholds for pollinators like butterflies. They often contain critical habitat and food resources, far away from the disturbance of human civilization. But it turns out even those areas are under threat.
"I think in the past we thought wildlands, we could just set them aside away from humans and they would be fine because our impact is direct, right?" said Katy Prudic, a researcher from the University of Arizona who studied the impacts global warming is having on butterfly numbers.