Climate change and conflict can create a self-reinforcing feedback loop: Climate change exacerbates existing conflicts, while conflict makes adapting to climate change more difficult, said Janani Vivekananda of International Alert at the Wilson Center on February 7. [Video Below]

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.

The original version of this article, by Kagondu Njagi, appeared on Thomson Reuters’ AlertNet.

By the time the violence had died down, more than 80 people lay dead and hundreds were left homeless.

Yet there was scarcely enough water – the resource the Maasai and Kikuyu tribes were fighting over – to wash away the blood that had stained this part of Kenya’s Rift Valley.

2012 witnessed a remarkable number and extremity of environmental conditions, from Hurricane Sandy and the U.S. drought to wildfires in Siberia and drought-driven blackouts in India. Arctic sea ice melted to its furthest extent in recent history. The energy landscape continued to change as well, from the launch of the U.S. Navy’s Great Green Fleet to the first liquefied natural gas shipments across the Arctic. As President Obama clearly stated in his second inaugural address, climate change is heightening both our risks and the need to respond, but tying together all of these issues is a highly complex endeavor.

A majority of the world population now lives in urban settings, but many of the most rapidly growing cities are unprepared to accommodate their new citizens. Newly swollen municipalities in poor and institutionally fragile countries are especially disadvantaged by poor planning and management, deficient public services, and citizen insecurity.

“Environmental degradation has measurable impacts on migration and presents humanity with unprecedented challenges,” writes Laurence Turbiana in The State of Environmental Migration, edited by François Gemenne  and Pauline Brücker of the Institute for Sustainable Development and International Relations and Dina Ionesco of the International Organization for Migration. The report presents the findings of students at the Paris School of International Affairs who examined a number of case studies in 2011, including sudden disasters like the floods in Thailand, Colombia, China, and Bangladesh, as well as slower-onset events like droughts in Somalia and Mexico. The editors conclude that “environmental migration, in its forced and voluntary forms, is a reality.”

The Wilson Center Policy Briefs are a series of short analyses of critical global issues facing the next administration that will run until inauguration day.

Seven billion people now live on Earth, only a dozen years after the global population hit six billion. But this milestone is not about sheer numbers. Demographic trends will significantly affect the planet’s resources and people’s security.

If Hurricane Sandy was a wake-up call for many in the United States to the kind of extreme weather that climate change is expected to bring, Typhoon Bopha, which struck the Philippines a month later, is a reminder of what makes developing regions even more vulnerable to these changes.