More of the world's coastal glaciers are melting faster than ever, but exactly what's triggering the large-scale retreat has been difficult to pin down because of natural fluctuations in the glaciers' surroundings. Now, researchers at the University of Texas Institute for Geophysics (UTIG) and Georgia Tech have developed a methodology that they think cracks the code to why coastal glaciers are retreating, and in turn, how much can be attributed to human-caused climate change. Attributing the human role for coastal glaciers—which melt directly into the sea—could pave the way to better predictions about sea level rise.