Mario Atencio, a Diné elder, remembers his grandmother’s home in Counselor, New Mexico, as a sanctuary, a verdant expanse where a simple, traditional Navajo lifestyle thrived amidst a landscape teeming with life and ancient wisdom. This idyllic existence, deeply intertwined with the land and its ancestral heritage, represented a peaceful haven, a place of profound cultural connection. However, this serene world began to unravel in 2015 when the advent of hydraulic fracturing, or fracking, operations aggressively expanded across New Mexico’s vital northwest corner, a region globally recognized as the Greater Chaco Landscape. This area, a UNESCO World Heritage Site, holds immense archaeological and cultural significance as the ancestral homeland of Puebloan peoples and continues to be sacred ground for numerous Indigenous communities, making it particularly vulnerable to industrial exploitation.

The once-tranquil environment surrounding Atencio’s grandmother’s property soon succumbed to a relentless assault of industrial noise and pervasive air pollution. The situation escalated dramatically in 2019, when catastrophic spills unleashed thousands of gallons of crude oil, irrevocably contaminating both the land and its precious underground water sources. The ecological devastation was immediate and profound: indigenous plant species, including traditional medicinal herbs vital to Navajo healing practices, withered and vanished, while rare bird species and native wildlife, once abundant, receded into obscurity. The very essence of the land’s spiritual and physical sustenance was compromised, a direct blow to the Diné way of life.

Two years ago, in a powerful stand against this environmental degradation, Atencio stepped forward as the lead plaintiff in Atencio v. State of New Mexico, a burgeoning climate litigation case poised to make legal history. This significant lawsuit meticulously details accusations against the New Mexico Legislature and various state agencies, alleging their active role in harming Indigenous communities and, critically, their failure to uphold explicit constitutional duties to prevent harmful pollution. Atencio articulates a fundamental grievance: "The rights that we have as Indigenous people to free, informed, prior consent are being violated. We’ve never had people from the government come and say, ‘This is what’s going to happen to your land and water.’" This assertion underscores the international principle of Free, Prior, and Informed Consent (FPIC), a cornerstone of Indigenous rights recognized by declarations such as the United Nations Declaration on the Rights of Indigenous Peoples (UNDRIP), which mandates that Indigenous communities must be consulted and agree to any development affecting their lands or resources.

After a protracted journey through the lower courts, the New Mexico Supreme Court, in a pivotal decision this month, agreed to hear the case, signaling its profound legal and environmental implications. Should the court rule in Atencio’s favor, this landmark decision would join a growing roster of high-profile climate justice victories. Notable among these is Held v. Montana, a groundbreaking suit brought by young people who successfully argued that Montana’s failure to regulate greenhouse gas emissions violated their constitutional right to a healthy environment. Similarly, last year saw young Indigenous climate advocates in Hawai’i achieve a significant win against the state’s Department of Transportation for its continued pursuit of highway expansion projects, directly contradicting the state’s own directive to decarbonize its transportation sector by 2045. These cases highlight a burgeoning trend of climate litigation empowering citizens, especially youth and Indigenous populations, to seek redress and systemic change through judicial avenues.

Margaret Barry, a seasoned expert tracking climate litigation at Columbia University’s Sabin Center for Climate Change Law, confirms this global phenomenon, noting that similar cases are emerging in virtually every state across the U.S., with a handful of successes over the past decade. This surge reflects a growing recognition of constitutional environmental rights and the judiciary’s potential role in enforcing governmental accountability for climate action. Barry emphasizes that state constitutions frequently incorporate provisions mandating a proactive duty to protect residents’ rights to a clean and healthy environment. However, the robustness and enforceability of these protections vary significantly from state to state. For instance, in Alaska, the case of Sagoonick v. State of Alaska saw a group of young plaintiffs attempt to halt the development of a liquefied natural gas project. They posited that the state’s constitution, which protects natural resources for the general public, implicitly requires the state to ensure a livable climate. The Alaska Supreme Court, however, ultimately disagreed with this interpretation in March, illustrating the divergent judicial approaches to constitutional environmental claims.

In stark contrast, New Mexico voters, demonstrating foresight and environmental commitment, adopted a constitutional amendment in 1971 that explicitly directs the state government to "provide for control of pollution and control of despoilment of the air, water and other natural resources." Gail Evans, the tenacious attorney from the Center for Biological Diversity leading Atencio’s case, asserts that the state has demonstrably failed to fulfill these unambiguous constitutional responsibilities. Evans draws a compelling parallel, likening the state’s environmental duty to its obligation to adequately fund public education. Just as the state must allocate resources for teachers and develop educational guidelines, she argues, it is equally bound to provide the necessary tools and robust enforcement to protect public and environmental health from oil and gas pollution. Instead, New Mexico has "just utterly failed," characterized by lax enforcement, pervasive regulatory loopholes, and a system that allows the industry to pollute with minimal accountability, the lawsuit alleges.

The severity of New Mexico’s regulatory shortcomings is starkly revealed by data from the environmental watchdog group Earthworks. In 2023, the New Mexico Environment Department (NMED), tasked with overseeing a vast industrial landscape, employed a mere two full-time inspectors to investigate complaints across all 56,000 oil and gas facilities statewide. This severe understaffing effectively leaves the industry largely to self-report its emissions of harmful air pollutants and potent greenhouse gases, a system critics argue is inherently prone to underreporting and non-compliance. The lawsuit further highlights this systemic failure through the experience of another Diné plaintiff, Kendra Pinto, who personally documented a significant methane leak near her home, even after the Environment Department had inexplicably assured her that no leaks were found. Methane, a greenhouse gas far more potent than carbon dioxide in the short term, contributes significantly to climate change, making the unchecked leaks a critical environmental and public health concern.

Evans decries the permitting process as fundamentally flawed, stating, "You can get a permit to frack simply for asking. The state doesn’t do any type of environmental or public health overview or consideration before granting that permit." This permissive regulatory environment has led to alarming consequences. In the Permian Basin, one of the world’s most prolific oil and gas fields, ambient air quality readings consistently exceed federal standards, yet new wells continue to be permitted, exacerbating an already critical pollution burden. New Mexico’s position as the nation’s second-largest fossil fuel producer underscores the immense economic and political pressures at play, creating a complex challenge to balance energy production with environmental stewardship and public health.

The potential ramifications of Atencio v. State of New Mexico are enormous, capable of compelling a significant shift in environmental policy for a state deeply intertwined with the fossil fuel industry. However, leveraging similar legal victories at the federal level remains a considerable challenge, as noted by Barry. The U.S. Constitution, primarily designed to limit governmental power and protect civil liberties like free speech, differs fundamentally from many state constitutions that proactively grant rights, such as the right to a healthy environment. This distinction creates a higher bar for federal environmental rights cases. This was evident in October when a federal judge in Montana dismissed Lighthiser v. Trump, a case that sought to expand the protections won at the state level in Held v. Montana. The twenty-two plaintiffs, including several from the Held case, argued that the Trump administration’s executive orders, which rolled back climate protections and amplified fossil fuel production, were unconstitutional and violated their right to a stable and healthy climate. While the judge acknowledged the plaintiffs’ demonstrable harm from climate change, the court ultimately concluded that federal courts lacked the authority to compel the government to alter its policy course.

If the New Mexico Supreme Court rules in his favor, Atencio envisions a future where the state is not only forced to comprehensively document the devastating effects of oil and gas pollution on Indigenous communities’ health and their sacred lands but also compelled to implement meaningful, protective measures. This could encompass a range of critical actions, including an immediate moratorium on new oil and gas development until verifiable emissions reductions are achieved, the closure of egregious legal loopholes that currently allow operators to pollute with impunity, a substantial increase in funding for environmental enforcement agencies, and the establishment of significantly larger buffer zones between drilling sites and vulnerable communities, homes, or schools.

Evans directly challenges the industry’s common refrain that stricter regulations would render them unviable. "What’s so shocking to me is that the industry will come forward and say, ‘If you do what the plaintiffs are asking for, you’ll put us out of business,’" she states. Her powerful retort encapsulates the core of the legal battle: "So you can’t operate in a way that doesn’t harm people’s health and environment? Because that’s what we’re asking for." This case, therefore, transcends a local dispute; it represents a pivotal moment in the global fight for environmental justice and climate accountability, particularly for Indigenous communities whose ancestral lands and traditional ways of life are disproportionately impacted by the extractive industries.