The opinions expressed here by Trellis expert contributors are their own, not those of Trellis.
The single event most likely to accelerate the global clean energy transition isn’t a breakthrough in battery storage, nor a new international climate accord. It’s a war. The conflict in Iran – with its disruption of the Strait of Hormuz, its crude price shock, and its demonstration of how fragile the global energy architecture truly is – may prove to be the most consequential forcing function for sovereign energy independence the modern world has encountered.
This isn’t an environmental argument but one that’s colder, more mechanical and more honest. The nations most exposed to the Hormuz disruption are staring at a structural vulnerability demonstrating economic and existential threats not within their control. The gateway to global climate progress may run not through Stockholm or Davos, but through the Strait of Hormuz.
The structural trap of oil dependency
Oil dependency isn’t, at its core, an energy problem. It’s a sovereignty problem. Every nation that imports oil is, to some measurable degree, delegating a portion of its economic fate to a geography it doesn’t control, through shipping lanes it cannot fully defend, across a geopolitical chessboard populated by actors whose interests may diverge violently from its own.
The numbers are worth considering. In 2025, approximately 20 million barrels of crude oil and petroleum products transited the Strait of Hormuz every single day, representing roughly 20 percent of total global oil consumption and 34 percent of all seaborne crude oil trade. A single waterway, 21 miles wide at its narrowest point, mediates between the world and roughly a third of its tradable crude supply. The destinations are overwhelmingly Asian: China, India, Japan and South Korea together absorbed 69 percent of Hormuz crude flows in 2024. China received approximately one-third of its entire oil supply through this passage. No nation can rationally accept indefinite dependence on supply chains it cannot protect.
The Iran conflict as clarifying event
There is a meaningful difference between knowing a risk and feeling it. Financial markets understand this well: systemic risks are priced imperfectly until they are suddenly, viscerally real. The Iran conflict crossed that threshold with remarkable speed. Brent crude surpassed $100 per barrel on March 8, 2026 for the first time in four years — and tanker traffic through the Strait of Hormuz collapsed by roughly 87 percent by March 15 before falling to near zero. Major container shipping firms, including Maersk and Hapag-Lloyd, suspended transits entirely. What the conflict revealed wasn’t new information, but a new felt experience: the tanker insurance market seizure, the central bank emergency sessions, the defense ministries suddenly convened over spreadsheets about crude imports. Abstract systemic risk had become a concrete, political, budgetary crisis for dozens of governments in the span of days. Crisis may be the only mechanism that can promptly and reliably convert abstract systemic risk into concrete political will.
The rational actor’s green conclusion
If the goal is energy security — not decarbonization, not emissions reduction, simply the ability to keep the lights on without existential geopolitical exposure — what are the options?
Nuclear power offers low-carbon baseload generation, but carries lead times measured in decades, political resistance in most democracies, and meaningful proliferation risk if deployed at scale across multiple sovereign states. Diversified LNG supply chains reduce single-country exposure but leave nations trading one commodity dependency for another, still subject to geopolitical pricing and maritime chokepoint risk. Modest gains, not structural resolution.
Renewables: wind, solar and increasingly grid-scale storage are the only option that severs the dependency chain entirely. Sunlight and wind are domestically abundant in virtually every nation on earth and cannot be sanctioned. They don’t go through the Strait of Hormuz. They aren’t subject to OPEC quotas or Islamic Revolutionary Guard Corps interdiction. A nation that generates its energy domestically from renewables has, by definition, achieved energy independence. There is an irony worth acknowledging: the green transition, when framed as a national security imperative rather than a moral one, commands the attentio
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