Climate change, ecosystems, biodiversity and ecosystem services

The National Climate Assessment process gives us an opportunity to determine if the changes in ecosystems, biodiversity and ecosystem services that have been predicted to occur have actually come to pass.  Where have we been right?  Where have we been wrong?  What can we learn from predictions that have not come to pass?  An iterative process of prediction and observation will help to develop a comprehensive understanding of the complex changes in ecosystems, biodiversity and ecosystem services that are being driven by climate change.