Announcing SKOPE (Synthesizing Knowledge of Past Environments), a free web application that provides easy access to PaleoCAR’s tree-ring based annual retrodictions at 800m spatial resolution (calibrated to PRISM) of precipitation and temperature, for the Southwest US for the last 2000 years. At a coarser spatial resolution (~50km), SKOPE offers annual reconstructions of the Palmer Modified Drought Index (PMDI; the successor to the Palmer Drought Severity Index or PDSI) for the contiguous 48 US states, also for the last 2000 years.  Please click these links for a more detailed announcement, to try the SKOPE App, or to view the SKOPE User’s Guide.