Carbon Visualiser - See your CO2 in burgers, basketballs, pufferfish and more
Wren - Offset your carbon footprint by saving rainforests
Klima - Go carbon neutral
Website Carbon Calculator - Find out the how much CO2 your website emits
Capture - A great free screen capture utility that allows you to capture either a window or the desktop and save it to either a file or the clipboard.
CHOOOSE - A platform for climate action