Concerns about the increasing greenhouse gases in our atmosphere and the resulting global effects have received high visibility in the general media as well as scientific journals. These concerns have been translatedinto several projects from the international scientific community-projects aimed to better understand the processes of climate and how these changes impact the ecosystem.The lively selection of articles in this issue of Advances in Ecological Research cover a wide spectrum of ecology and provide something of interest to all ecologists. Topics include temperature and organism size, carbon allocation in trees, and the role of morphological plasticity in resource acquisition.