Padbury Clock Screensaver - Minimal screensaver for Mac
Wren - Offset your carbon footprint by saving rainforests
Clock.saver - A simple clock screensaver based on Braun watches ⌚
YAYZY - Track the carbon footprint of each purchase in real-time
iScreensaver - iScreensaver is a multi-featured software that uses Image, Live Photo, Video, Movie, and 3D Model files to create screensavers for Windows and Macintosh.
Klima - Go carbon neutral