Today marks the start of the BL2021 Online Conference: Bryophytes, lichens, and northern ecosystems in a changing world, bringing together four major bryological, lichenological and botanical societies: the International Association of Bryologists (IAB), the American Bryological and Lichenological Society (ABLS), the Canadian Botanical Association (CBA-ABC) and the Société québécoise de bryologie (SQB). The conference runs from July 6-9 and seeks to address diverse topics including “climate change, genomics of model organisms, conservation, biogeography, ecology, genetics, phylogenetics and physiology together with newer areas like epigenomics, environmental DNA studies and cryptogamic polar biology.” An overview of the GLOBAL TCN project will be presented by Matt von Konrat on Wednesday, July 7 at 1:30 pm Eastern in Room 3. The abstract is included in the special issue of The Bryological Times: BT_152_special_issue.pdf (conferium.com).