Hurrell analyzes observations and computer modeling to better understand climate variability and global warming. He is particularly interested in understanding the interaction between human-induced global warming and natural climate patterns such as El Niño and the North Atlantic Oscillation. He also focuses on predicting regional climate change over the next few decades. Hurrell has participated in the assessment reports of the Intergovernmental Panel on Climate Change (IPCC) the organization that shared in the 2007 Nobel Peace Prize. He is a senior scientist in NCAR’s Climate and Global Dynamics Division.