From Ukraine and the Middle East to sub-Saharan Africa and East Asia, the world is engulfed in a series of significant international crises. But despite such urgent issues, it would be a grave mistake to forget about the structural foreign policy challenges – such as access to water – that could become the crises of the future.

The effects of climate change “are here now” and pose a “serious challenge” for the United States, said Alice Hill, White House senior advisor for preparedness and resilience, at the Wilson Center on July 29. [Video Below]

Is it possible to prepare for the unexpected? Could anyone have foreseen, for instance, a nuclear meltdown triggered by an earthquake-induced tsunami? Or a brutal band of transnational militants quickly capturing Iraq’s largest dam while attempting to establish a new Islamic caliphate? Perhaps not exactly, but that shouldn’t stop us from anticipating unlikely events, says Chad Briggs, a risk assessment expert and strategy director of consulting firm GlobalInt.

In 1986, global nuclear weapons stockpiles peaked at nearly 70,000 warheads. By the beginning of 2013, there were just over 17,000, with only 4,400 kept operational. This dramatic reduction was the fruit of a negotiation process that began in the late 1940s. In spite of incredible tensions between the United States and the Soviet Union, negotiators were able to make progress once they focused on building trust with small, pragmatic steps, rather than starting with the complete elimination of all weapons. [Video Below]

The fight for control over “the most dangerous dam in the world” is raging.

Since its capture by Islamic State (IS) militants on August 7 and subsequent attempts by Iraqi government and Kurdish forces to take it back, Iraq’s Mosul Dam has been one of the central components of the government’s surprising and rapid collapse in the country’s northern and western provinces. In fact, one might see the capture of the Mosul Dam as the moment IS ascended from a dangerous insurgent group to an existential threat to Iraq as a state.

Since the early 1990s, the rising price of crude oil and other key natural resources – and the resulting drive by governments and private companies to extract those resources – has led to sharp conflicts in Latin America. At the core of these disputes is the clash between national economic interest and the rights of indigenous people inhabiting the land where most natural resources are located.

Asia is going through an unprecedented wave of urbanization. Secondary and tertiary cities are seeing the most rapid changes in land-use and ownership, social structures, and values as peri-urban and agricultural land become part of metropolitan cityscapes. All the while, climate change is making many of these fast-growing cities more vulnerable to disasters.