Climate Disinformation Poses Threat to National Security, Experts Warn

In the face of growing climate threats, misinformation poses a critical national security challenge, according to former Homeland Security Secretary Michael Chertoff. The World Economic Forum’s annual global risk assessment has ranked misinformation as the second most severe short-term global risk, with extreme weather events coming in fourth. Looking ahead a decade, the top six risks all relate to either information manipulation or climate disruptions.

When combined, these two threats create a dangerous synergy that exceeds their individual impacts. Recent events illustrate this troubling pattern: online hoaxes about wildfires in Los Angeles and Hawaii, along with Russian propaganda during Hurricane Helene, have undermined effective responses to climate disasters.

“Reliable information is a requirement for tackling any risk, whether a Florida hurricane or a terrorist plot,” Chertoff notes, drawing on his extensive experience in government and industry leadership. This reality explains why civil servants in national security, disaster relief, and federal science have traditionally remained apolitical.

Even during the previous Trump administration, defense officials acknowledged climate change as “a direct threat to the national security of the United States” through bipartisan legislation. The nation’s ability to protect itself is significantly compromised when decisions rely on distorted information, regardless of whether it originates from foreign adversaries, industry interests, or social media manipulation.

Russia has proven particularly adept at exploiting climate disasters to advance its geopolitical agenda. Following floods and storms across Spain, Poland, and the United States in late 2024, Moscow actively promoted narratives suggesting that Western support for Ukraine had left these countries vulnerable to natural disasters. Such tactics aim to sow division within NATO countries and undermine confidence in democratic governments.

The security implications extend beyond propaganda. Extreme weather events can disrupt voting access, creating conditions that authoritarian regimes can exploit to interfere in elections.

These information challenges compound the already substantial national security threat posed by climate change itself. The U.S. intelligence community has warned that climate disruptions “will increasingly exacerbate risks to U.S. national security interests.” The financial impact is staggering: natural disasters now cost the United States approximately $130 billion annually—six times more than in the 1980s—while causing roughly twice as many American fatalities as historical averages.

The U.S. military faces direct operational challenges from heat, fires, and flooding, alongside increased demands for disaster relief operations. Since 2022, American armed forces have deployed to more than 240 extreme weather crises globally. These climate-driven disasters trigger humanitarian emergencies, political instability, increased migration flows, and damage to critical infrastructure.

Meanwhile, geopolitical rivals Russia and China are strategically leveraging climate vulnerabilities to diminish U.S. influence with key international partners.

Chertoff emphasizes that the need for reliable climate information transcends political divisions. The National Guard provides disaster assistance in both Republican and Democratic states, with red states receiving the majority of Federal Emergency Management Agency relief funds due to their exposure to hurricanes and other climate threats. Defense legislation consistently incorporates climate resilience provisions with bipartisan support, reflecting the broad public backing for clean energy and climate resilience policies.

In Florida specifically, the combination of intensifying disasters and rampant misinformation threatens lives, damages economic stability, puts military communities at risk, and deepens societal divisions.

Looking ahead, Chertoff calls for an “all-hands-on-deck approach” involving state and local governments, academia, civil society, and the private sector to address these interlinked challenges. He concludes with a sobering reminder that both extreme weather and propaganda will remain persistent threats, requiring national leaders to prioritize collective security above political considerations.