Nuclear War and Climate Change: The Urgency for Action

The author highlights the shared history of underestimating the effects of both climate change and nuclear weapons. The text details how nuclear detonations cause immediate blast damage and long-term atmospheric disruptions, such as 'nuclear winter', which mirror the systemic risks of the climate crisis. It warns that current geopolitical instability, exacerbated by climate-driven resource scarcity, increases the risk of nuclear conflict, particularly in South Asia. The author calls for a revival of public discourse on nuclear risks to match the current momentum for climate action.

• There is a historical pattern of underestimating the catastrophic effects of both climate change and nuclear weapons, where initial assessments of nuclear damage focused on immediate blasts while ignoring secondary and enduring consequences.
• Nuclear weapons tests and detonations cause significant radiation damage and long-term health effects, including genetic damage across generations, as seen in the Marshall Islands and Kazakhstan.
• Research into nuclear weapons effects, specifically the concept of 'nuclear winter', contributed to the scientific understanding of atmospheric physics and provided early warnings about global warming.
• A 2014 study on a hypothetical nuclear exchange between India and Pakistan involving 50 weapons of 15 kilotons each suggests that the resulting temperature and precipitation changes would have global effects and strain world food supplies for years.
• Climate change is actively exacerbating past nuclear legacies; for example, rising seas are inundating a concrete dome designed to encase contaminated debris from U.S. nuclear tests in the Marshall Islands.
• Climate-driven instability, such as extreme heat and droughts, increases geopolitical fragility and the risk of nuclear miscalculation, particularly in South Asia where India, Pakistan, and China are expanding their arsenals.

APA

The Council on Strategic Risks (2021). Nuclear War and Climate Change: The Urgency for Action. https://councilonstrategicrisks.org/2021/11/12/nuclear-war-and-climate-change-the-urgency-for-action/

Chicago

The Council on Strategic Risks. Nuclear War and Climate Change: The Urgency for Action. 2021. https://councilonstrategicrisks.org/2021/11/12/nuclear-war-and-climate-change-the-urgency-for-action/.

Wikipedia

{{cite press release |author=The Council on Strategic Risks |title=Nuclear War and Climate Change: The Urgency for Action |date=12 November 2021 |url=https://councilonstrategicrisks.org/2021/11/12/nuclear-war-and-climate-change-the-urgency-for-action/ |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@misc{thecouncilonstrategicrisks2021nuclear, author = {{The Council on Strategic Risks}}, title = {{Nuclear War and Climate Change: The Urgency for Action}}, publisher = {The Council on Strategic Risks}, year = {2021}, month = nov, url = {https://councilonstrategicrisks.org/2021/11/12/nuclear-war-and-climate-change-the-urgency-for-action/}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }