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France is getting an unexpected boost in its efforts to cut greenhouse gas emissions, but it comes with a catch consumers are feeling at the fuel pump.
Soaring fuel prices caused by the war in Iran have prompted people to buy less diesel and cut down on their gas use at home. That has helped bring emissions down 4.1 per cent in the first half of 2026, according to Citepa, a French organisation that measures air pollution and greenhouse gases to track the country’s environmental impact.
France is now on track to cut emissions by 2.8 per cent this year, up from 2.1 per cent in 2025. That would amount to 10 million tonnes fewer emissions than last year.
Even so, it’s still falling short of the pace needed to meet its long-term climate targets. France is aiming to halve emissions by 2030 compared to 1990 levels, but meeting that goal will require annual reductions of around 5 per cent.
Fuel prices hit French consumers
Much of the emissions reduction boils down to the cost of filling up the car. Fuel prices have surged since the start of the year, with diesel climbing 45 per cent after the war in Iran choked off oil supplies through the Strait of Hormuz.
People have simply bought less fuel since then. Diesel sales fell 7.3 per cent in the first six months of 2026. In that same timeframe, transport emissions dropped 4.5 per cent.
Emissions from homes and commercial buildings fell even more, dropping 12 per cent in the first half of the year mostly due to less natural gas use for heating, water and cooking.
But the downward trajectory is unlikely to last. Citepa expects emissions to fall just 1.3 per cent in the second half of the year, partly because France is using more gas-fired power plants to produce electricity for neighbouring countries.
The energy industry’s emissions are expected to rise by 3.6 per cent over the full year, even as transport and other sectors continue to record reductions.
France’s Ecological Transition Minister Monique Barbut called the decline “encouraging” but acknowledged it was “not yet enough to meet our climate targets”, according to AFP.
Global emissions could fall for first time since 2020
Elsewhere in Europe, emissions are on a steady – if slow – decline.
Germany’s emissions fell about 2 per cent in the first half of 2026 as demand for oil dropped. However, the think tank Agora Energiewende has warned the country could still exceed its annual emissions limit by around 10 million tonnes – the first time it will have done so since passing its landmark climate law in 2019.
High energy costs have also encouraged European households to find more affordable alternatives to fossil fuels. Heat pump sales rose 25 per cent in France, Germany and Poland early in 2026, and EV sales have also spiked since the start of the war. Meanwhile, solar power has saved the EU an estimated €37.4 billion in gas imports since it broke out in February.
Outside of Europe, emissions are also going down. In China, oil use fell 9 per cent in the second quarter of 2026, while carbon emissions dropped 1 per cent – the first time a decline in China’s emissions had been linked to oil rather than coal.
A recent report by Carbon Brief based on forecasts from the IEA suggests global fossil fuel CO2 emissions could fall about 0.5 per cent this year, which would be the first annual decline since stay-at-home orders caused them to plummet in 2020.
While the IEA expects oil demand to climb when the war ends, the widespread embrace of solar and wind power, nuclear energy, electric cars and heat pumps could keep fossil fuel use down even after their prices stabilise. Those technologies helped to prevent an estimated 3 billion tonnes of CO2 emissions worldwide in 2025, the agency reports.