The Urban Trees Ecophysiology Network (UTEN) held its inaugural workshop in Athens, GA, USA, bringing together 40 specialists from various disciplines to study the physiological functioning of urban trees. The workshop aimed to understand how the urban environment affects tree health and functioning, as well as how trees impact the microclimate of cities. Urban trees provide numerous benefits, such as reducing air pollution, improving mental health, lowering temperatures, and mitigating climate change. However, there are disparities in tree distribution, with low-income areas having less tree cover and experiencing higher temperatures. The workshop discussed methods for data management, research design, and communication with stakeholders, and proposed the installation of informative panels and QR codes on monitored trees for public engagement. The network plans to establish a global urban tree monitoring network and expand its nodes to currently underrepresented regions. [Extracted from the article]