Links and Likes

The Center for Open Science is a nonprofit organization with the mission to increase openness, integrity, and reproducibility of scholarly research. Help them by donating here or by spreading their message.


Critical Mass is a social action in which cyclists meet at a set location and time and travel as a group through their neighborhoods. The idea is for people to group together to make it safe for each other to ride through their streets, and to take the priority and the space back from the motor traffic for a while. Support the movement by joining your local Critical Mass. Meet me at a ride in Hamburg or Mannheim.


Parkruns are free, weekly, timed community events across the world, organized by local volunteers. It's for everyone. Join your local run or support it as a volunteer here. Meet me at Alstervorland Parkrun or Neckarau Parkrun.


The Union of Concerned Scientists is a nonprofit organization, founded more than 50 years ago by scientists and students at the Massachusetts Institute of Technology, that puts rigorous, independent science to work to solve our planet's most pressing problems. Help them by donating here.