The Rio+20 Summit is less than a month away. Policymakers and civil society representatives have been advocating for the inclusion of the nexus approach in “The Future We Want”, the outcome document of the negotiations — by Olimar Maisonet-Guzmán

Collecting inputs for the Bonn2011 Nexus Conference preparatory process

The question of how to effectively use our water resources has been debated for decades, yet what we need more than ever is direct action at the field level.

A message from Felix Dodds, Executive Director of the Stakeholder Forum for a Sustainable Future and International Steering Committee (ISC) Member

Environment secretary says it’s time to shatter the myth that you can’t be green and growing – The clouds may be gathering around the Rio +20 Earth Summit next week with walkouts marring last-minute talks, the negotiating text remaining a mess of brackets and clauses, commentators convinced the summit will end as a damp squib, and the row over David Cameron’s refusal to attend refusing to die down.

The Water-energy-food nexus (or other permutations) is increasingly finding itself in the public discourse surrounding development and sustainability. It is a concept that is easy to understand on the face of things, yet like a ball of wool unravels itself into a myriad of complex and dynamic relationships. In fact some have long studied some of the components in detail, such as water use for agriculture and use of crops for bioenergy. And yet despite the fact that these three resources are amongst the most important resources for human survival, the attention they have received as a single interdependent issue has been inadequate. – This is of interest to me in particular because my research is based around the water-energy nexus. Indeed, there is an aspect of food/agriculture in there too, which would be more prominent if the UK aimed to source all of its food from the UK … I digress.

The ‘nexus’ has become a popular buzz word to describe the complex linkages among water, energy and food security – sectors that have traditionally remained fairly separate. Talk of the water-energy-food nexus was a hot topic at last month’s Planet Under Pressure conference; it is also the focus of a significant German government-organised input to the UN Rio+20 Summit. What has brought nexus thinking to the fore, and what does this nexus look like? How does it relate to climate compatible development?

Systems thinking comes of age as KPMG says environmental, social and economic problems cannot be solved separately. The megaforces that KPMG highlights represent all the usual suspects, from climate change, unpredictable energy supplies and water scarcity to urbanisation, deforestation and food security.

Last year, Shell released Signals and Signposts, which analyzed long-term energy scenarios and concluded that we are in an era of volatile transitions at the economic, political and social levels. The stresses building in our global systems, such as water, food and energy production, will make industrial and social transformations inevitable. We must acknowledge the links between these stresses and “connect the dots,” before it is too late.