The disempowerment of women and girls is the single biggest driver of inequality today, said Helen Clark, administrator of the UN Development Program, during a plenary on the final day here at the Women Deliver conference in Kuala Lumpur, where more than 4,500 people from 149 countries and 2,200 organizations gathered to discuss women’s health, equity, and international development.

A little over a decade ago when I first became interested in the subject of environmental security, it took me ages to understand what I have since been eager to stress: environmental security is not a concept but rather a debate.

Water is the foundation of human society and will become even more critical as population growth, development, and climate change put pressure on already-shrinking water resources in the years ahead. But will this scarcity fuel conflict between countries with shared waters, as some have predicted, or will it create more impetus for cooperation?

Environmental security and international development aren’t typical movie-going fare, but at the 2013 DC Environmental Film Festival, ECSP premiered two short documentaries with unique environmental stories: Healthy People, Healthy Environment: Integrated Development in Tanzania shows how improving health services and environmental conservation can empower coastal communities in Africa; and Transcending Boundaries: Perspectives from the Central Albertine Rift Transfrontier Protected Area Network explores the opportunities for “peace parks” along the shared borders of Uganda, Rwanda, and the Democratic Republic of Congo.

“There is a huge gap between climate science, policymakers, and the end-users, in terms of understanding climate change and adaptation, and how that relates to conflict or peace,” concluded 26 experts from more than 10 countries across sub-Saharan Africa at the Wilson Center last fall. But “climate change adaptation is crucial to achieving Africa’s aspirations for peace, security, and sustainable development.”

You might think that conflict over water is inevitable as rising temperatures and changing climates are expected to constrain supplies in the coming decades at the same time that expanding consumption standards and growing populations are expected to boost demand. But you’d be wrong, according to the United Nations – and they’re launching the International Year for Water Cooperation this week to make that point.

Since the integrated population, health, and environment (PHE) approach is relatively new in international development, donors, partners, and implementers want to know how it’s improving people’s lives. In the PHE community, we believe that combining efforts to address natural resource management, reproductive health, and livelihoods is making a difference in places where rapid population growth combines with poverty and environment degradation. But to know for sure and be able to convince others, we need to have data to support those beliefs.