In a 2021 report by Erin M. Blanton, Dr. Melissa C. Lott, and Kirsten Smith, Columbia University’s Center on Global Energy Security and Policy examines how continued investment in the robust 2.5 million-mile US natural gas pipeline infrastructure system can help us reach net-zero climate targets faster affordably and reliably. The report also discusses how low or zero carbon fuels of the future, like hydrogen and biogas, can more quickly be implemented to cut greenhouse gas emissions.