The Getz Ice Shelf in Antarctica. (Jeremy Harbeck/NASA via AP) (CN) — The worst-case scenario is always on the horizon. It holds our attention, but even the deer caught in the headlights has a chance to act. That’s why researchers at the University of Reading in the U.K. stress the risk of a catastrophic Antarctic ice shelf collapse and sea level rise due to climate change in a study published Thursday in the journal Geophysical Research Letters. The study evaluated the effects of global temperature increases of 1.5, 2 and 4 degrees from pre-industrial levels which will lead to greater melt and runoff and increase the risk of destabilization.