Gunfire erupted at the border of the Afghan Nimroz Province and Iran’s Sistan-Baluchistan Province on May 27, 2023, amid rising tensions over water rights, killing troops on both sides.

Iranian and Afghan government officials have blamed each other for triggering the incident. But whatever the cause, the tensions over water flows between these nations have been simmering for at least a century. Indeed, in 1999, under the first iteration of the Taliban, flows were restricted completely causing damage to the delicate Hamoun Region—a registered UNESCO biosphere site of social and ecological importance.

The Central Sahel is increasingly deemed the new epicenter of terrorism, accounting for 35 percent of global terrorism deaths in 2021. Yet as the situation in the region continues to deteriorate, artisanal and small-scale gold mining (ASGM) both persists and proliferates. For instance, in Mali, where much of the region’s security crisis originates, this conundrum is laid bare.

Nigeria is home to many violent conflicts, one of which is the farmers-herders conflict that has posed severe security challenges in the country. The human toll of the violence has been immense, claiming more lives than the Boko Haram insurgency. Hundreds of thousands of people have been killed or displaced. Nigeria has also experienced increased ethnic, regional, and religious polarization, and this crisis has undermined national stability and unity.

The increase in global temperatures by over 1 degree Celsius since preindustrial times is already having broad and significant impacts. An ongoing multi-year drought in Eastern Africa, for instance, has been attributed to global warming. Hunger crises, displacement, and exacerbated conflict between pastoralist groups are some of the reported dire consequences.

Climate change’s ripples reach every corner of the globe, but nowhere is their geopolitical impact more pronounced than in China’s relations with the United States. This is especially the case as the undisputed security risks posed to both nations by climate change become intertwined with broader arcs of political, economic, and military competition on both sides.

Northern Central America is experiencing a confluence of insecurity and migration challenges that are increasingly intertwined with climate change. What are the contours of this emergent convergence—and how can responses be developed and implemented more effectively?

Links between water and conflict seem to crop up everywhere one looks these days. The Horn of Africa will soon face a sixth consecutive failed rainy season in 2023—its worst drought on record. Not only is this drought a consequence of global climate change, but it has also led to widespread food shortages and local civil conflicts. And over the past year in Ukraine, Russian troops have directly damaged that nation’s already vulnerable water systems, including pipelines, pumping stations, and treatment facilities. These repeated attacks on water infrastructure have not only undermined local livelihoods in Ukraine, but they have also polluted surface waters and threatened biodiversity.

In recent decades, the international system has undergone profound changes—especially in terms of the types of threats that destabilize international peace and security. As new threats emerge, a focus on new dimensions of the concept of security is now reaching the top of the international agenda. In this context, the global freshwater crisis is beginning to be perceived as an existential threat to states requiring extraordinary measures to alleviate or solve the problem.