10-13 July 2001.  Amsterdam, The Netherlands.  Challenges of a Changing Earth.  Global Change Open Science Conference.  Sponsors:  International Geosphere-Biosphere Program (IGBP), WCRP, IHDP, IOC, CONGREX, KNAW.  Contact: Annemiek van Iersel. Europaplein, 1078 GZ Amsterdam, The Netherlands.  Tel: +31 20 549 1212.  E-mail: annemiek@congrex.nl.  (link posted 17 April 2001)

10-18 July 2001.  Innsbruck, Austria.  International Association of Meteorology and Atmospheric Sciences.  Contact: David Bromwich. Ohio State University, 1090 Carmack Road, Columbus, Ohio, 43210-1002, USA. Tel: +1 614 292 6692. Fax: +1 614 292 4697. E-mail: bromwich@polarmet1.mps.ohio-state.edu.  (link posted 17 April 2001)

16-20 July 2001.  London, UK.  Detecting Environmental Change: Science and Society.  Sponsors: UK Natural Environment Research Council (NERC) Centre for Ecology and Hydrology and others.  Contact: Catherine E. Stickley.  Environmental Change Research Centre, Department of Geography, University College London.  26 Bedford Way, London WC1H 0AP, UK.  Tel. +44 20 7679 5562. Fax: +44 20 7387 7565.  E-mail: c.stickley@ucl.ac.uk.  (link posted 17 April 2001)

16-27 July 2001.  Bonn, Germany.  Conference of the Parties, Sixth Session (Resumed).  Contact:  United Nations Framework Convention on Climate Change (UNFCCC) Secretariat, PO Box 260124, D-53153 Bonn, Germany. Tel: +49 228 815 1000. Fax: +49 228 815 1999. E-mail: secretariat@unfccc.int.  (link posted 17 April 2001)

24-26 July 2001.  Montreal, Canada.  21st Session of the Open-Ended Working Group of the Parties to the Montreal Protocol. Contact: : Executive Secretary, The Secretariat for the Vienna Convention and Montreal Protocol (Ozone Secretariat), PO Box 30552, Nairobi, Kenya.  Tel: +254 2 62 1234. Fax: +254 2 62 3601. E-mail: ozoneinfo@unep.org.  (link posted 17 April 2001)