The Massachusetts Climate Change Projections - Statewide and for Major Drainage Basins:  Temperature, Precipitation, and Sea Level Rise Projections project was developed by NE CASC with funding by the Commonwealth of Massachusetts. In Sept. 2016 Governor Baker signed a Comprehensive Executive Order committing the administration to work across the state to plan and prepare for the impacts of climate change. The goal of this project was to develop down scaled projections for changes in temperature, precipitation, and sea level rise for the Commonwealth of Massachusetts. The Executive Office of Energy and Environmental Affairs has provided support for these projections to enable municipalities, industry, organizations, state government and others to utilize a standard, peer-reviewed set of climate change projections that show how the climate is likely to change in Massachusetts through the end of this century

The goal of this project is to identify statistical trends in observed and simulated maximum, minimum and base (mostly groundwater contribution during low flow months) flows in the Northeast Climate Science Center domain during the 20th and 21st century, assess the temporal (annual and seasonal) and spatial distribution of the trends, and evaluate the impact of warmer climates on the statistical properties of streamflows (mean and variance). A secondary goal is to determine what GCMs best represent the observed climatology of the region using statistical metrics. Base and minimum flows are vital for fish ecosystem functioning and for riparian vegetation. Climate projections indicate summers will get warmer and drier in the NE CSC domain which will affect aquatic ecosystems. Larger streamflows peaks will affect existing infrastructure, e.g. bridges, dams, cities)

For the past four years, The Nature Conservancy (TNC) and the US Army Corps of Engineers (Corps) have funded a study at UMass to evaluate the impacts of climate change on the biological resources in river and to investigate how the negative impacts of reservoir regulation could be ameliorated in the face of climate change.  It is fortuitous that this study provides an excellent basis for future “watershed” type studies that may be performed by the NE CASC. The study has resulted in a full calibrated hydrology model of the Connecticut River Basin, a set of 112 different future hydrology scenarios associated with climate change, and a simulation and optimization model of the major reservoirs in the basin

There are a number of fundamental questions that remain unanswered in the Northeast concerning the likely changes to climate and their impacts on hydrology