Climate policy this week was dominated by rising geopolitical tension, shifting carbon market pressures and the environmental consequences of the Iran conflict. The UK also made a significant announcement on international climate finance.
EU considers intervention to stabilise carbon market
European policymakers are assessing whether to intervene in the EU Emissions Trading System to limit price volatility. European Commission President Ursula von der Leyen wrote to EU leaders on 17 March confirming that the EU would consider adjusting the Market Stability Reserve — which regulates permit supply — to help keep energy prices in check. The benchmark EU carbon contract fell by more than 5% on the news.
Officials are balancing two competing priorities. Lower prices may ease pressure on households and industry, but could weaken incentives for low-carbon investment. The debate reflects broader tension between short-term affordability and long-term decarbonisation strategy. Think tank E3G warned that any dilution of the ETS would reduce investor certainty rather than fix the underlying vulnerability to fossil fuel price shocks.
Carbon market volatility reshapes investor expectations
Recent fluctuations in carbon prices have prompted investors to reassess exposure to emissions trading systems. Political uncertainty driven by the Iran conflict and industrial lobbying has suppressed EU carbon prices sharply in March, with EU member states divided between those favouring limited adjustments and those calling for stronger intervention.
Bruegel argued that attacking the ETS would be economic self-sabotage, pointing out that fossil fuel volatility — not carbon pricing — is the primary driver of current energy cost pressures. Investors are increasingly focused on regulatory stability and long-term policy signals when allocating capital.
Environmental impact of Middle East conflict raises climate concerns
Fighting involving Iran has triggered large-scale oil and gas fires, releasing significant emissions and exposing millions of civilians to toxic air pollution. Israeli strikes on oil facilities in and around Tehran on 7–8 March set four sites ablaze, releasing particulate matter, sulphur dioxide and volatile organic compounds over one of the region’s most densely populated cities.
The Conflict and Environment Observatory identified more than 300 environmentally significant incidents as of 10 March, spanning oil refineries, military sites and civilian infrastructure across multiple countries. Analysts warn the situation highlights how geopolitical conflict can disrupt climate progress and increase global emissions.
UK climate finance cuts raise concerns over global commitments
The UK confirmed on 19 March that it will spend approximately £6 billion on international climate finance over the next three years — around 14% less per year than under the previous five-year commitment of £11.6 billion. Foreign Secretary Yvette Cooper told parliament the reallocation would fund higher defence budgets, citing similar decisions by Germany, France and Sweden.
Critics including WWF described the cuts as deeply concerning, noting they come despite the UK having agreed at COP29 to a new collective target of $300 billion in annual climate finance from developed countries by 2035. The International Development Committee said the picture was “desperately bleak” for some of the world’s most vulnerable people.
IEA triggers record emergency oil release as Iran conflict deepens energy crisis
The International Energy Agency announced on 11 March that its 32 member countries would release 400 million barrels of oil from strategic reserves — the largest coordinated action in the agency’s history and more than double the release triggered by Russia’s invasion of Ukraine in 2022. The move came as Brent crude briefly surged to nearly $120 a barrel, its highest level since 2022, following the closure of the Strait of Hormuz to commercial shipping.
IEA executive director Fatih Birol described the situation as the largest oil supply disruption in the history of the global oil market. On 20 March, the IEA issued further guidance urging governments to deploy demand-side measures — including electric vehicle incentives, fuel economy standards and energy efficiency programmes — alongside the emergency release. The agency was explicit that strategic reserves were a stop-gap. The most important fix, Birol said, remains the resumption of transit through the strait.
Iran war sharpens the strategic case for renewable energy
The energy shock triggered by the Iran conflict has reignited debate about whether sustained fossil fuel price spikes will accelerate the clean energy transition. UNFCCC executive secretary Simon Stiell told an audience in Brussels on 16 March that doubling down on fossil fuels is “completely delusional”, warning that the current crisis would repeat unless governments accelerated the shift to renewables. “Sunlight doesn’t depend on narrow and vulnerable shipping straits,” he said.
Analysts and reporting from NPR highlighted how countries that invested heavily in solar and electric vehicles — including Pakistan and China — have been more insulated from the shock. Researchers pointed to the risk, however, that emergency responses could lock in new fossil fuel infrastructure, as happened in Europe after Russia’s invasion of Ukraine. The lesson from 2022, several analysts warned, is that crisis rarely produces the structural change that its logic demands.
UN report warns climate finance figures are inflated by accounting changes
A report published by UN Trade and Development on 13 March found that much of the reported growth in global climate finance reflects changes in accounting practices rather than a genuine increase in resources reaching developing countries. The analysis found that bilateral aid carrying a climate marker rose from $5.7 billion in 2009 to $27.7 billion in 2023 — but that non-climate official development assistance fell from 0.31% to 0.25% of donor gross national income over the same period, after adjusting for refugee costs and Ukraine.
The report warns that the same spending is routinely counted toward both climate finance and development aid targets, inflating headline totals without increasing the actual resources available to vulnerable countries. It calls for common accounting standards, an end to double-counting, and a scaling-up of overall financial commitments to ensure that the $300 billion annual target agreed at COP29 reflects real support on the ground rather than creative classification.
