Antiquities, Prehistoric (2) Prehistoric peoples (2) Climatic changes (2) végétation (1) ressources (1) pollen (1) information (1) gaz à effet de serre (1) incendie (1) document (1) datation (1) âge (1) climat (1) charbon de bois (1) Control (1) Dating (1) Specimens (1) Cases (1) Metadata (1) Volcanic ash, tuff, etc (1) Twenty-first century (1) Speed (1) Records (1) Radioactive dating (1) Pollen (1) Plants (1) Nature (1) Maple (1) Fire (1) Cycles (1)