Climate change is a defining global issue of our time. In a recent address to the UN Security Council, John Kerry, the U.S. presidential envoy for climate, remarked that climate change is “the challenge of all of our generations.” An important dimension of the challenge presented by climate change concerns its implications for state and human security.

Many recurring problems in natural resource management are the result of missing a key point: ecosystems and human systems are inextricably linked and dynamic, changing constantly. We are part of a socio-ecological system, not external to it, as many previously thought. In the “age of man” – the Anthropocene, as some scientists call the current era – cross-sectoral collaboration is needed to make substantial headway in tackling complex challenges, such as natural resource-related conflict and climate change.

Earlier this month, there was a flurry of stories about brutal mass killings in clashes between the Pokomo and Orma communities over water and land in southeast Kenya’s Tana River County. The Kenyan media reported that about 30 people, including eight security personnel, had been killed and scores wounded, and reports on the death toll since last month are more than 100.