Around the world, conflict and environmental risks are on the rise – and they’re often connected in complex ways. In the past five years alone, the number of global conflicts has doubled. At the same time, human activity is pushing the planet beyond the ‘safe operating space’, increasing the risk of instability.

Researchers studying the links between conflict and environmental change have found that war and violence almost always harm the environment. But the reverse connection – whether environmental stress leads to conflict – is much harder to pin down. That’s because political systems, local institutions, and social dynamics often shape how environmental pressures play out.

Findings from recent studies suggest that sustainability and peace are positively correlated. In other words, the results suggest that peace and sustainability go hand in hand. If true, pursuing one could help achieve the other. But what if it’s not that simple?

A window into what we’re reading at the Stimson Center’s Environmental Security Program

Heat-Related Deaths May Have Tripled during Europe’s Heat Wave (Washington Post) 

A record-breaking heat wave in late June and early July pushed temperatures well above 100°F across Europe. Analysis from Imperial College London and the London School of Hygiene and Tropical Medicine found that of the 2,300 heat-related deaths in 12 major European cities between June 23 and July 2, 1,500 would not have occurred without the additional 1.3°C of warming caused by climate change.  

“There cannot be a healthy planet without a healthy ocean. It’s urgent business for us all,” said U.N. special envoy for the ocean, Peter Thomson, at last month’s UN Ocean Conference (UNOC). 

Hosted in Nice, France, the conference brought together more than 15,000 political leaders, scientists, civil society, the private sector, academic institutions, Indigenous peoples, local communities, and philanthropic organizations with the goal of identifying innovative ways to finance and mobilize action for the ocean.  

In a rural, hard-to-reach area of Blantyre district in southern Malawi, Ephraim Louis cannot imagine where his life would be without the solar panel on the roof of his house. “I am not a captive of darkness anymore,” says Louis, 42. “It’s been more than 10 years since I installed this [solar panel] system. We still don’t have the main grid anywhere near us and no one here thinks it will ever come.” 

As headlines warn of falling birth rates and a “world gone gray,” a more urgent and overlooked story is unfolding: in too many places, women and girls are still being failed – with profound consequences for human health, economic growth, and sustainable development.

This week will mark the 35^th World Population Day, a day established to focus attention on how population trends – growth, decline, migration, urbanization – shape our shared future. These dynamics influence everything from natural resource use and governance models to, over time, relationships among nations. Understanding where and how populations are changing allows us to plan more effectively and strategically for the future, and to steward our resources toward development success that can be truly sustained.

In the wake of last week’s devastating floods in Central Texas, and with the 20th anniversary of Hurricane Katrina on the horizon, new data underscores a sobering trend: extreme weather events are becoming even more intense, more severe, and more frequent. At the same time, the very institutions and experts responsible for predicting and preparing for these rising threats are under threat themselves.

The Trump administration has significantly reduced or eliminated programs — like my former home, the Environmental Change and Security Program (ECSP) at the Wilson Center — that worked to address and communicate the climate challenges we face. Today, however, I’m pleased to announce that ECSP’s work, including the New Security Beat, has found a new home.

A few days ago, I bought a cucumber at the grocery store. Hermetically sealed in a layer of plastic as if bracing itself for interstellar travel rather than a trip to my kitchen, I struggled to open it, my patience thinning with the plastic. At one point I considered using my teeth. That’s when it hit me: was this really necessary?

On April 23, 2025, India announced the suspension of the Indus Waters Treaty (IWT) following an attack that killed more than 20 tourists in Indian-administered Kashmir. While the region’s history of political tensions and conflict has tested the treaty many times, the IWT has endured through wars, diplomatic freezes, and border conflicts. Although the two countries reached a ceasefire in May, the IWT remains suspended.