Global groundwater resources and management : selected papers from the 33rd International Geological Congress (33rd IGC) Oslo Norway August 2008 section 1. Groundwater resources and management section 2. Hydogeological [i.e. Hydrogeological] conditions groundwater assessment and modelling section 3. Hydrogeochemistry and contamination of groundwater resources section 4. Exploitation of groundwater and recharge section 5. Hazardous groundwater conditions