Karachi, the world’s second largest city by population, is emerging from the grips of a deadly heatwave. A persistent low pressure system camped over the Arabian Sea stifled ocean breezes and brought temperatures in excess of 113°F (45°C) to the city of 23 million people in June. The searing heat disrupted electricity and water service, making life nearly unbearable. All told, officials estimate the heatwave killed at least 1,200 Pakistanis, more than twice as many as have died in terrorist attacks this year.

In 2011 Thailand was hit by unprecedented monsoon rains far above the average rainfall of the previous 30 years. Two million people across 26 provinces were affected. During the crisis, hundreds of civilians took it to the streets to protest discrimination by the Flood Response Operation Center and the unfair distribution of water, electricity supply, shelter, and food. Civilians were so angry that they broke a sandbag wall in Bangkok which was protecting a wealthy district from water surges. Public unrest and discontent with the government continued until a military coup in 2013.

At the launch of A New Climate for Peace, a new report on climate-fragility risks produced for the G7 by a consortium of international partners including the Wilson Center, USAID Deputy Assistant Administrator Christian Holmes called water a common denominator for climate risk.

When the leaders of the G7 countries – Canada, France, Germany, Italy, Japan, the United Kingdom, and the United States – met earlier this month, they agreed to make fossil fuels a thing of the past by 2100. At the same time the G7 is also taking steps to make climate change’s connection to conflict a priority in the present.

With thousands of scientists representing 195 countries working for more than a quarter of a century, the Intergovernmental Panel on Climate Change (IPCC) is the world’s leading authority on of assessing climate change and its potential socio-economic impacts. However, Marc Levy, an IPCC lead author and deputy director of Columbia University’s Center for International Earth Science Information Network, says he’d have gone further in connecting climate change to conflict in their latest report if it were up to him.

One of the primary ways climate change is expected to affect international relations is through water. There are more than 270 bodies of water that cross over international boundaries, and various methodologies have identified several dozen that are particularly at risk for tension or conflict. So how is climate change affecting transboundary water politics? Are governments and institutions taking the threat seriously? A few years back, a group of researchers decided to focus on this question.

Between the Sahara to the north and savanna to the south lies the semi-arid Sahel, a region stretching from Senegal to Sudan that has experienced desperate poverty, climate change, malnutrition, and violence. While every context is different, the Sahelian countries share some common challenges, including a pattern of recurring crises and fluid borders. Boko Haram’s reign of terror in northern Nigeria and Mali’s coup have both had cross-border components. [Video Below]

In 2003, the United Nations General Assembly declared 2005 to 2015 to be the decade of “water for life” as a way to encourage countries to reach their water-related targets under the Millennium Development Goals. In summing up the last 10 years, it was noted that water cooperation had been promoted widely, featuring at international fora and in government initiatives and development agendas. Water cooperation is described as having the potential to enable peace and sustainable development. However, just as focusing on “water wars”  might undermine the everyday challenges of securing safe and adequate supplies of water, focusing only on “more cooperation” may well simplify the problem at hand.