The Atlantic Meridional Overturning Circulation is a part of a global ocean circulation pattern, which transports as much as 1 PW of heat.  Its variability has been linked to droughts, hurricanes, and food security.  AMOC has long been hypothesized to be bistable with a robust, present-day, state (~17 Sv) and a weak or off state.  As the climate warms, an increase in the surface freshwater flux could collapse the AMOC.  Such a collapse would have dramatic impacts, with a near 1C global mean temperature reduction and local reductions as high as 12C.  However, projections of AMOC are highly uncertain, with peak strength varying from 10 Sv to nearly 30 Sv.  Here we provide a brief overview of the ImPACTS SciDAC project, which has two primary goals.  (1) Increase our physical understanding of AMOC and how it is represented in Earth System Models (ESMs) through systematic analysis of ESM output and exploring novel AI based analysis and (2) develop advanced analyses, workflows, and eddy-resolving ESM initialization and efficiency strategies to enable long-term simulations of AMOC and its stability.