The International Campaign to Abolish Nuclear weapons (ICAN) is a broad, inclusive campaign, focused on mobilizing civil society around the world to support the specific objective of prohibiting and eliminating nuclear weapons. You can learn more about ICAN here: https://www.icanw.org/

For Project for Awesome, thousands of people post videos advocating for charities that decrease the overall level of world suck.

See more about folks working hard to decrease world suck here: https://www.projectforawesome.com/