The sixth EUROTRAC Symposium was held in Garmisch-Partenkirchen, th st Gennany from 27 - 31 March 2000. Some 375 scientists from 28 different countries (from the USA to Uzbekistan) gathered together and contributed to a lively week. Symposium 2000 was the second Symposium of the second phase, EUROTRAC- 2 which is EUREKA environmental project number 1489, and also the ftrst one organised by the new team at the International Scientiftc Secretariat (ISS). We stayed with the tried and tested EUROTRAC format, giving ample time for poster sessions as well as side meetings and workshops. The invited...