Social enterprises have gained increasing attention for their potential to address economic, environmental, and social issues. Business incubation and acceleration have emerged as tools to support start-up companies in establishing and growing their businesses. However, the effectiveness of incubation in promoting sustainable development and addressing climate change has been understudied. This study aims to evaluate the effectiveness of business incubation in supporting start-ups that address climate change and promote sustainable practices, with a focus on Y Combinator, a business incubator, and its start-up, Wren. The study employs a mixed-method approach based on secondary data to analyze the incubation process and Wren's contributions to the United Nations Sustainable Development Goal 13. The research findings indicate that the incubation process provides Wren with necessary resources and support to develop sustainable business models and highlights the importance of incubators in promoting the transition towards a low-carbon economy.