New DG XII publications on the environment In the framework of the Environment programme of the European Commission (DG XII), the following new publications are now available: - "Trospospheric oxidation mechanisms": Proceedings of joint EC/EUROTRA/GDCh workshop on 22-22 September 1994 in Leipzig; - "STEP Leather Proje... In the framework of the Environment programme of the European Commission (DG XII), the following new publications are now available: - "Trospospheric oxidation mechanisms": Proceedings of joint EC/EUROTRA/GDCh workshop on 22-22 September 1994 in Leipzig; - "STEP Leather Project: Evaluation of the correlation between natural and artificial ageing of vegetable tanned leather and determination of parameters for standardization of an artificial ageing method": Research Report No 1, January 1995; - "Second European stratospheric arctic and mid-latitude experiment (SESAME) 1994-1995": Information brochure in English, French, German, Italian and Greek.