The two poles of our planet—the Arctic and Antarctica—demand greater attention right now. For decades, the United States has played a leadership role in both regions, a responsibility that it must continue to fulfill as a warming climate and other drivers of change are creating new challenges and opportunities. Regrettably, the Trump Administration has not devoted the resources or high-level attention necessary to maintaining American leadership position on these critical matters.

Access to and competition over natural resources has been one of the most common triggers for conflict. Throughout the centuries, countries and communities have fought over productive agricultural land, trade routes, spices, textiles, opium, and oil, to name just a few. But the battle over one natural resource—fish—has long been overlooked. As trends in the global fish industry increasingly mirror the conflict-ridden oil sector, fish may become the newest addition to the list of resources driving geopolitical competition. There are five parallels between oil and fish that call for increasing the sustainability of the fishing industry, or we might find ourselves facing what U.S. Coast Guard Captain Jay Caputo has called “a global fish war.”

Put simply, “the damn thing melted,” Navy Secretary Richard Spencer explained in recent testimony, referring to Arctic ice melt as the trigger for the new U.S. Navy Arctic Strategy that is to be released this summer. What the Navy planned as a 16-year road map is in need of updates after only four years, in part due to receding polar ice caps, which are “opening new trade routes, exposing new resources, and redrawing continental maps,” but also in part due to the rise of China as an “Arctic stakeholder” and increasing important player in the region.

In a brief published by the Stanley Foundation, Cullen Hendrix explores how “the degradation and overexploitation of renewable sources…and unequal access to these resources” can make societies more or less susceptible to experiencing mass atrocities. Hendrix proposes that “demographic-environmental stress” is most likely to contribute to mass atrocities (genocide, war crimes, or crimes against humanity) in agricultural societies that have a high level of group identity-driven politics and economics, exclusionary political institutions, political actors that deprive certain groups, or when governments have low legitimacy.

True to essentialist stereotypes, Latin America’s indigenous peoples are the best stewards of the region’s rainforests. But the source of their enthusiasm for environmental protection is more complex than mere ascriptive traits or whether they speak native languages. What’s more, in a development that should be worrying to environmentalists, exposure to the negative effects of extractive industries appears to have a degrading effect on that enthusiasm.