International water law, which regulates the uses of international watercourses that are situated partly in different States, is a highly topical sector of law. In 2014, two conventions covering the subject matter entered into force globally. At the same time, a water-food-energy nexus has become part and parcel of the development canon that emphasises the importance of the complex relationship between water, energy and food. In this article, it is discussed whether international water law supports the water-food-energy nexus approach, which aims to reconcile the different water uses in international basins. The analysis also covers the human rights to water and food from the nexus viewpoint. The legal regime of the Mekong River is used as an example of the possibilities and challenges of the nexus approach in international water law. It is concluded that despite its deficiencies international water law provides a very useful platform for the cooperation between States and different sectors that aim at guaranteeing water, food and energy security.

International water law, which regulates the uses of international watercourses that are situated partly in different States, is a highly topical sector of law. In 2014, two conventions covering the subject matter entered into force globally. At the same time, a water-food-energy nexus has become part and parcel of the development canon that emphasises the importance of the complex relationship between water, energy and food. In this article, it is discussed whether international water law supports the water-food-energy nexus approach, which aims to reconcile the different water uses in international basins. The analysis also covers the human rights to water and food from the nexus viewpoint. The legal regime of the Mekong River is used as an example of the possibilities and challenges of the nexus approach in international water law. It is concluded that despite its deficiencies international water law provides a very useful platform for the cooperation between States and different sectors that aim at guaranteeing water, food and energy security.

The right to water emerged in the nineties primarily as the right to domestic water for drinking, washing and cooking, and was closely related to the right to sanitation, both of which are seen as a component of the right to an adequate standard of living. This study examines the question of the right to water for food and agriculture and asks whether such a right can be found in the right to water, or whether it is more appropriate to examine the right to adequate food for that purpose. Seeking inspiration from the right to adequate food and from other fields of international law, the study explores the content of the right to water for food and agriculture and then considers its implications for water law. Recognizing a human right to water – for drinking and household needs as well as for growing food – has implications for water allocation and sets limits to the extent that water can be allocated for other uses. In addition, it entails the respect for procedural rights and attention to important principles, such as the principle of non-discrimination and the rights of indigenous peoples.

The original mandate of the UN Special Representative on Business and Human Rights said that he should „develop materials and methodologies for undertaking human rights impact assessments.‟ Since then, tools for human rights impact assessment (HRIA) have developed by different actors. This article reviews two such tools, both of which are up for revision in 2010. One is by the International Finance Corporation, International Business Leaders Forum and Global Compact, the other by the Roundtable on Sustainable Biofuels. The article finds that substantive human rights and human rights principles are well understood by the former, while the latter seems to have an inadequate understanding of crucial human rights principles, such as non-discrimination, but the latter has some procedural strengths as compared to the former.