This book critically analyses the availability of environmental counterclaims in investment arbitration presented by the respondent host state against the claimant investor. It starts from the premise that the conflicting relation between investment law and environmental protection cannot always be avoided. Yet, the instrument of environmental counterclaims in investment arbitration might alleviate such relation. Throughout its chapters, this book addresses the questions about the societal and practical relevance of seeking redress for environmental damage in investment arbitration, the...