Found this while looking for the Notepad++ source code files download.

"Notepad++, a source code editor and MS Windows Notepad replacement, has the mission to offer a greener environment. By optimizing its routines, it results in reducing CPU power consumption then reducing the world carbon dioxide emissions."

Cool! Save the planet by using Notepad++ (and which by the way is a great editor)!

[ notepad++ // environment // global warming // open source ]