Sea Level Rise

Many caves exist along or near coastlines, especially where cliffs and mountains meet the ocean or are present on islands. Erosion from ocean action can help create new caves, or open up entrances to existing pockets within rocky geology. Unfortunately this proximity to the ocean, as well as the increasing frequency and strength of storms (thanks to climate change), put these caves at increased risk of damage, or even becoming totally submerged over time, making them unfit for the air-breathing species who rely on them. Even if a cavern isn't totally submerged, the sudden storm surges can raise the water level enough to wash away and drown baby bats, which even if it only happens in one year, could wipe out an entire generation or even an entire colony of bats.

In the case of erosive damage. Around the world we are seeing a rise in the erosion and collapse of geological landmarks from stone arches in deserts to entire cliff sides along coastlines, thanks to rising temperatures and abnormally cold winters expanding and contracting materials. When combined with unusually strong storms and weather systems, increased wave action, etc., scientists have found that all of these combined factors help to speed up the destruction of millennia old land forms.