EntityQ2382319· pop 18· linked from 399 articlesecological crisisSign in to savecatastrophic event regarding the environment due to human activityConnectionsclimate changeEntitytaigaEntityinvasive speciesEntityConvention on Biological DiversityEntityenvironmental degradationEntityextreme weatherEntityoverpopulationEntityTakis FotopoulosEntityArgentinaCountryAlaskaEntitymountainEntitycancerEntityevolutionEntityCervidaeEntityInternational Standard Book NumberEntityspeciesEntityUrsus maritimusEntityRodentiaEntitynatural environmentEntityecosystemEntityCategoriesEnvironmental issuesEvolution of the biosphere