Take urgent action to combat climate change and its impacts Climate change Drylands Biodiversity Aridity Bacteria Ecology Fungi Biogeography Protect, restore and promote sustainable use of terrestrial ecosystems, sustainably manage forests, combat desertification, and halt and reverse land degradation and halt biodiversity loss Soil biodiversity Biological soil crusts Carbon cycling Global change Protect, restore and promote sustainable use of terrestrial ecosystems, sustainably manage forests, combat desertification, and halt and reverse land degradation and halt biodiversity loss Biological soil crust Carbon sequestration Drought Ecological networks Extremophiles Global scale Microbial community Microbiome Mineralization Nitrogen cycle Phosphorus Plant diversity Soil carbon Urban greenspaces http://metadata.un.org/sdg/13