Forests play a critical role in influencing climate at local to global scales, and protecting and restoring forests is widely seen as an important tool for mitigating climate change. Understanding the ability of forests to serve as a natural climate solution requires knowledge of the underlying mechanisms by which forests influence climate. This webinar will explore these mechanisms, including how forests sequester and store carbon and the consequences of deforestation. We will also examine how increasing atmospheric CO2 concentrations and related changes in climate are affecting how trees function, causing changes in tree growth and mortality in ways that both enhance and threaten the ability of forests to mitigate climate change. Finally, we will discuss links between biodiversity and carbon storage in forest ecosystems.