Looking at 'Water through the lens of climate change' August 26, 2021 RWhitcomb-editor “Watermark” (acrylic on Yupo), by Greater Boston-based Patty Stone, in her show “Watermark’’, at Bromfield Gallery, Boston, Sept. 1-26. Many of her paintings have been inspired by her close observation of the Charles River.The gallery says:“Patty Stone investigates the movement of water through the lens of climate change in a new series of abstract paintings and works on paper. Watermark juxtaposes a fluid paint surface against geometric shapes and lines of measurement suggesting rising tides or changing shorelines.’’ The Charles River at the Medfield-Millis (Mass.) town line