Good afternoon, Columbia community! It's Monday, September 22, 2025, and here's what's happening on campus this week. From today through Friday, Columbia Engineering is hosting a series of events as part of Climate Week NYC. Faculty and students will share their progress and initiate conversations on topics ranging from climate forecasting and plasma fusion to clean air and grid-scale energy storage. Join us to discover how we can work together to build a more sustainable world. On Wednesday, September 24, from 3:00 to 5:00 PM, Teachers College will host a symposium titled "Educational Reforms and Innovation in a Changing World: Chinese Experiences and Global Perspectives." The event will take place in Russell Hall 306 and will explore education policy trajectories, transformations in undergraduate talent cultivation models, the impact of artificial intelligence on learning processes, and the role of education in advancing peace and social justice. Earlier this month, on September 2, faculty members held a "Speak Out" protest at the university's main gates, expressing concerns over potential encroachments on academic freedom. Eight professors, including four from the School of International and Public Affairs, addressed the crowd, emphasizing the importance of maintaining the university's commitment to delivering truth and preserving academic integrity. In recent research news, Columbia Engineering and the Ethereum Foundation have launched a research center to advance blockchain infrastructure. The center aims to develop and understand blockchain protocols and their applications, contributing to the growing field of decentralized technologies. That's all for now. Stay tuned for more updates, and have a great week!