Does access to quality water and sanitation have an effect on maternal health outcomes? That was a surprising topic of discussion on day one of the second-ever Global Maternal Health Conference hosted this week in Arusha, Tanzania.

Surprising because, to be honest, I did not think there would be strong disagreements over the relationship between water and sanitation (WASH) and maternal health. In my work with the Comparative Urban Studies Project, the two seem to be clearly linked.

Despite progress over the years, Ethiopia’s Guraghe zone, located in the Southern Nations, Nationalities, and People’s Region, faces many development challenges. As senior monitoring and evaluation officer in the Guraghe People’s Self-help Development Organization (GPSDO), I have been working in this region for more than five years trying to reduce poverty and improve socio-economic development. The organization as a whole has been here for more than 50.

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.

It is well known that public health issues that affect the world’s most vulnerable populations – food insecurity, maternal and child health, water- and sanitation-related disease, and resource scarcity – are inextricably linked. Where these linkages are strongest, experience on the ground has shown that community-based integrated approaches to development provide more effective and sustainable solutions over vertical, sector-based programs. But so far, there are very few comprehensive evaluations providing strong quantitative evidence of this advantage.

At a major summit in London this summer the Bill and Melinda Gates Foundation launched one of the most significant efforts yet to revitalize commitments around the world towards providing universal access to family planning. More than 220 million women around the world – mostly in developing countries – want to delay or avoid pregnancy but are not using effective methods of contraception. Meeting the unmet needs of these women could save the lives of hundreds of thousands of mothers and millions of infants, not to mention significantly impact the future of human development. But the last decade has been a period of relative neglect by international donors.

Carbon offsets have fallen in and out of favor since they were established with the Kyoto Protocol in 1997. Critics say they allow wealthy organizations to placate consumers and claim their products are “green” without making any real, lasting changes. But, if the scheme works properly, some action is supposed to be taken somewhere, so what is it like at one of these credit-producing organizations?

“We are at a critical juncture in human history, which could lead to widely contrasting futures,” writes the chairman of the National Intelligence Council (NIC) Christopher Kojm in the council’s latest forward-looking quadrennial report, Global Trends 2030: Alternative Worlds, released yesterday.

This year, principal author Mathew Burrows and his colleagues focus on a series of plausible global scenarios for the next 20 years and the trends or disruptions that may influence which play out. Among the most important factors in these projections are demography and the environment.

With the start of part two of Circle of Blue and the China Environment Forum’s Choke Point: China series, the focus has broadened from looking more narrowly at water scarcity and energy to including the effects of food security and pollution in China too.

“From an environmental point of view,” said Circle of Blue Senior Editor Keith Schneider, the question is, “can a nation that big, operating at such a scale maintain its sustainability?”