Breadcrumb Home Journal Geosciences No. 9: Observing systems for a dynamic Earth Journal Geosciences No. 9: Observing systems for a dynamic Earth Share This Geosciences issue explains the vital role our planet’s geological activity in the fundamental dynamics of living systems, including for humans. 1 April 2009 Geology and subsurface modelling Discovering the Earth Sciences Researcher Student Citizen, citizen's group Cover of Issue 9 of the Géosciences journal. © BRGM Read the journal online To find out more Buy the journal More news Newsletter BRGM Infos newsletter for January 2026 27 January 2026 News BRGM announces the winners of its 2025 awards for outstanding results 23 January 2026 News BRGM Éditions: 20 years and 40 guidebooks for the Curiosités géologiques collection 22 January 2026 News Groundwater situation on 15 January 2026 20 January 2026 All our news