The Long Term Ecological Research Network (LTER) Graduate Student Committee will sponsor this session examining the effects of climate change on community and ecosystem processes in a variety of systems. Community and ecosystems processes in systems around the world are controlled by a variety of abitoic factors, including climatic variables. Although extensive research has been conducted examining how climate affects ecosystem structure and function, this remains an important objective for ecological research. In particular, the need for long-term experimental work examining how climate change will impact a variety of systems has become exceedingly clear. The goal of this session will be to bring together scientists studying the effects of climate change factors on both community and ecosystem level processes within the LTER network. The long term nature of LTER sites gives us the ideal perspective from which to examine this topic. This session aims to examine the effects of multiple climatic drivers that may influence community and ecosystem process through either chronic (press) events, such as long-term alteration in climatic variability, as well as through one-time (pulse) events, such as climatic extremes. The session will include speakers from a wide variety of study systems, including oceans, streams, lakes, grasslands, forests, and urban systems, in order to facilitate communication across these diverse fields. Additionally, speakers will be a combination of both lead PIs and graduate students from LTER sites in order to encourage discussion between these groups.