The International Olympic Committee (IOC) intends to take on a leadership role in the new UN Sports for Climate Action Initiative, which aims to drive climate actions across the sports community. The Initiative was launched by the United Nations Framework Convention on Climate Change (UNFCCC), in partnership with the IOC, at a high-level event of the UN Climate Change Summit (COP24), which took place on Dec. 2-14 in Katowice, Poland. As part of its leadership and supporting role, the IOC has released two practical guides: “Carbon Footprint Methodology for the Olympic Games and Paralympic Games,” which provides detailed guidance to the organizing committees on how to measure the carbon footprint of the Olympic and Paralympic Games; and “Sports for Climate Action,” published in collaboration with the UNFCCC, which aims to provide the Olympic Movement at large with a general understanding of climate change and how to manage carbon emissions. Not only does sport impact the environment, but climate change is impacting sport. Phenomena such as unreliable snow and warm winters can restrict winter sports, and rising summer temperatures can make certain sports events more challenging for both athletes and spectators.