EDITORIAL
It's the enforcement that counts
OLE W PEDERSEN 

ARTICLES
The breach of limit values under the Ambient Air Quality Directive: what is 'as short as possible'? 
PROF DR REMO KLINGER
Partner, Geulen and Klinger Lawyers and Honorary Professor at the University for Sustainable Development, Eberswalde, Germany
CAROLINE DOUHAIRE
Associate, Geulen and Klinger Lawyers, Germany

Conditions for effective risk sharing against marine pollution: the case of the Ria de Vigo, NW Spain
SCHIMON GROSSMAN
Research Scholar, Norwegian School of Economics, Norway
PROF MICHAEL FAURE
Professor in Law, Maastricht University and Erasmus School of Law Rotterdam, The Netherlands

Guide to environmental liability in the Mexican hydrocarbons sector
JUAN FRANCISCO TORRES LANDA et al
Hogan Lovells, Mexico 

CASE COMMENTARIES
Validity of allowances under the EU Emissions Trading Scheme
Borealis Polyolefine GmbH and others v Bundesminister fur Land-, Forst-, Umwelt und Wasserwirtschaft and others, 
Joined Cases C-191/14, C-192/14, C-295/14, C-389/14 and C-391/14 to C-393/14, CJEU (28 April 2016)
JON TRUBY
Assistant Professor of Law, Centre for Law and Development, Qatar University
SARAH WHITLEY
Associate, Gide Loyrette Nouel LLP, London

US Regulation and Litigation
AMERICAN COLLEGE OF ENVIRONMENTAL LAWYERS 
Deference
Air quality
Environmental Liability

CURRENT SURVEY

European Union
Key Policy Developments
- Climate change
- Nature protection
- General matters 

Law Enforcement Issues
Environmental Legislative Update
MARTIN HEDEMANN-ROBINSON