Authored by NewClimate Institute and The Climate Group and powered by CDP data, ‘States, cities and businesses leading the way: a first look at decentralized climate commitments in the US’ shows that the US can already meet half of its climate commitments under the Paris Agreement by 2025, if the 342 commitments included in the analysis are implemented. This report provides the first steps in helping to quantify the contribution of states, cities and business to reduce US greenhouse gas emissions. As more and more commitments emerge, further analysis will be undertaken within the Initiative for Climate Action Transparency (ICAT), where this work originated. The analysis shows that because of their leadership and size, large states such as New York, California and Colorado are making the largest contribution to projected greenhouse gas reductions. In fact, US states alone deliver more than two thirds of the total estimated emissions reductions. However, cities are more ambitious (average of 22% GHG reduction between 2015 and 2025) and crucial for the implementation of specific actions. Businesses currently have the steepest targets, aiming for a 25% reduction in the next ten years.