MAASTRICHT. The Klimaat Actie Netwerk is encouraging students to pick up plastic waste that has been littered. The party calls it the UM-Clean up action. Students are to fill a bag with plastic waste, take a picture of themselves at the spot they cleaned up and add a pin to an interactive map on www.climatenetwork.nl/umcleanup. Everyone who shares it on social media, challenges five friends to do the same and tags KAN in the post has a chance of winning a little something from With Love Burrito. So far 23 students have participated. Most of them in Maastricht, but also some in Germany and even one in Mallorca.