Dr. Vargo’s most impactful research contribution to date has been the development of an attribution framework linking extreme individual glacier melt events to human-driven climate change. She demonstrated that extreme melting on glaciers – the years when the highest ice loss occurs – were far more likely in a human-influenced climate. This research was a key citation in demonstrating the human fingerprint on glacier retreat in the 6^th Assessment report of the Intergovernmental Panel on Climate Change (IPCC).