Climbers to help scientists with Yosemite lichen project
The National Park Service (NPS) in Yosemite, United States, is asking climbers for help with a study of lichens growing on big rock faces. Those who volunteer for one or more days between September 1- 21 will get free camping, experience with field work and the chance to meet up with other climbers. "Every climber knows how the colour and texture of rock faces can be critically dependent on the lichens spreading over their surface," says...