LONDON / ANTALYA, TURKEY — November 10, 2026 — Global carbon dioxide emissions from fossil fuels are projected to fall for the first time in several years after the US-Israeli war with Iran triggered a major energy shock, disrupted oil shipments and accelerated the shift toward renewable power.
But the apparent climate breakthrough comes with a disturbing warning: the world’s total carbon dioxide emissions are still expected to reach a new high in 2026.
According to the latest Global Carbon Budget, released Tuesday by an international team of more than 140 scientists, emissions from fossil fuels and cement production are projected to decline by 0.4% this year to approximately 38.2 billion metric tonnes of CO₂.
The unexpected decline has been driven partly by rising oil and gas prices following disruptions to shipping through the Strait of Hormuz, one of the world’s most strategically important energy corridors.
At the same time, expanding solar and wind power and growing electric vehicle adoption are helping slow the growth of fossil-fuel demand.
However, researchers warn that the decrease may prove temporary.
When emissions from deforestation and other land-use changes are included, total global carbon dioxide pollution is forecast to rise from 42.8 billion tonnes in 2025 to approximately 43.3 billion tonnes in 2026.
The findings were released as world leaders gathered for the COP31 United Nations climate summit in Antalya, Turkey.
The contradiction raises a critical question: Is the world finally approaching a turning point in fossil-fuel pollution—or has a devastating Middle East war merely created a temporary decline that could disappear when energy markets recover?
Global Fossil Fuel Emissions Expected to Drop 0.4% in 2026
The Global Carbon Project’s latest research indicates that 2026 could mark a rare interruption in the long-term growth of fossil-fuel emissions.
The report projects a 0.4% decrease from the previous year, driven largely by lower oil consumption and continued growth in cleaner energy technologies.
The forecast represents an important departure from earlier expectations.
At the beginning of 2026, global energy demand was expected to support another increase in fossil-fuel consumption.
But the war involving Iran sharply disrupted international oil and natural gas markets, forcing businesses, governments and consumers to respond to higher prices and constrained supplies.
The resulting adjustments reduced demand for some fossil fuels.
Oil-related carbon dioxide emissions are projected to fall by 1.9%.
Natural gas emissions are expected to decline by 0.3%.
Coal emissions, however, are forecast to increase by 0.6%.
These differences reveal that the energy crisis has not affected every fuel equally.
Higher oil and natural gas prices encouraged some consumers and businesses to reduce usage or switch to alternative energy sources.
But some energy users also turned to coal, which remains a major source of carbon emissions.
The Global Carbon Project’s calculations indicate that the reduction in emissions from oil and gas should more than offset the projected increase from coal.
Nevertheless, the uncertainty surrounding the forecast is significant.
Researchers estimate that the final annual change in fossil-fuel emissions could range from a 1.5% decrease to a 0.6% increase.
That means the precise outcome will not be established until more complete annual data become available.
Iran War Disrupts Strait of Hormuz and Reshapes Global Energy Demand
The biggest unexpected factor behind the emissions slowdown is the energy crisis associated with the US-Israeli conflict with Iran.
The war, which began in February 2026, disrupted shipping through the Strait of Hormuz, a vital maritime route connecting the Persian Gulf with international markets.
The passage normally handles a substantial share of global oil and liquefied natural gas shipments.
Disruptions to tanker traffic created serious concerns about supply availability and pushed energy prices higher.
For oil-importing economies, the consequences have been significant.
Transport operators, manufacturers and households have faced higher fuel costs.
Some businesses reduced consumption as energy became more expensive.
Others reconsidered investments in electricity generation, transportation and industrial equipment.
The crisis also encouraged governments to reassess their exposure to imported fossil fuels.
In September, Carbon Brief estimated that global fossil-fuel emissions could fall by approximately 0.5% during 2026 because of the continuing energy shock.
Its analysis drew on International Energy Agency forecasts showing a major reversal in global oil-demand expectations.
In January, the IEA had projected oil demand to increase by approximately 930,000 barrels per day during 2026.
By September, that forecast had shifted to a decline of around 2.5 million barrels per day.
The dramatic reversal demonstrated how deeply the conflict was influencing international energy markets.
WWC ONE MEDIA previously examined the geopolitical disruption in Iran Escalates the War as U.S. Elections Near—But the Next Strike Could Shake Global Markets.
That coverage explained how shipping attacks, oil-price volatility and escalating tensions threatened energy supplies and global financial markets.
Why Higher Oil Prices Can Reduce Carbon Emissions
The connection between expensive oil and lower emissions is rooted in changes to energy consumption.
When fuel prices rise sharply, households and businesses have stronger financial incentives to reduce consumption.
Drivers may travel less, combine journeys or choose more fuel-efficient vehicles.
Transport companies may reorganize routes or reduce unnecessary fuel use.
Manufacturers may improve energy efficiency or switch to alternative technologies.
Some consumers may accelerate plans to purchase electric vehicles.
Businesses may also reconsider investments that depend on consistently affordable fossil fuels.
These behavioral and investment changes can reduce oil demand.
However, higher energy prices are not an ideal climate-policy mechanism.
They can increase household expenses, worsen inflation and create difficulties for businesses.
Poorer households and developing economies may be particularly vulnerable because they have fewer financial resources to absorb energy shocks.
A war-driven reduction in fossil-fuel consumption therefore should not be confused with a successful or equitable climate transition.
The emissions benefit comes alongside substantial economic and humanitarian costs.
Renewable Energy Is Helping Meet Rising Global Power Demand
The emissions slowdown cannot be attributed entirely to the Iran conflict.
Renewable electricity generation continues expanding rapidly, supported by investments in solar and wind power.
According to the Global Carbon Project, renewable technologies and electric vehicles are helping meet approximately two-thirds of the additional global energy demand.
This is important because global energy consumption continues increasing.
Expanding electricity demand from industry, digital infrastructure, transportation and households creates pressure on energy systems.
When additional demand is met through renewable generation, the need for new fossil-fuel consumption can be reduced.
The economics of solar energy have also become increasingly attractive in markets where imported fuel prices are volatile.
In the Philippines, the Iran-related energy crisis has encouraged growing interest in rooftop solar and other alternative electricity sources.
WWC ONE MEDIA explored the trend in Iran War Sends Filipinos Racing Into Solar as Power Bills Surge—But One Barrier Could Keep Millions From Joining the Boom.
The report examined how households and businesses are considering solar power as protection against unstable electricity costs.
However, renewable deployment remains uneven.
Countries face different financing conditions, infrastructure limitations and regulatory challenges.
Expanding solar and wind capacity also requires investment in electricity grids, storage and other technologies.
Consequently, rapid renewable growth has not yet guaranteed a sustained global decline in carbon emissions.
Why Total Global Carbon Pollution Is Still Increasing
The most important distinction in the new report concerns the difference between fossil-fuel emissions and total human-caused carbon dioxide emissions.
Fossil-fuel emissions primarily come from activities such as burning coal, oil and natural gas, along with industrial processes including cement production.
But human activities release carbon dioxide through other pathways.
Deforestation, peatland degradation, land clearing and certain forms of agriculture can release large amounts of carbon stored in vegetation and soils.
These emissions are included in the broader global carbon budget.
The Global Carbon Project estimates that total carbon dioxide emissions will reach approximately 43.3 billion tonnes in 2026, compared with 42.8 billion tonnes in 2025.
This means the projected decline in fossil-fuel emissions is being outweighed by an increase in emissions associated with land-use changes.
The Guardian reported that fires in Southeast Asia and the conversion of natural land have contributed to the rising totals.
Scientists have also raised concerns that El Niño-related dry conditions can increase the risk of wildfires and weaken the ability of forests to absorb carbon dioxide.
As a result, a small decline in emissions from fossil fuels does not mean the planet’s overall carbon burden is falling.
Even a sustained reduction in annual emissions would not immediately reduce atmospheric carbon dioxide concentrations.
To stabilize the climate, net global carbon dioxide emissions ultimately need to fall to approximately zero.
China Could Record a 0.9% Emissions Decline
China remains the world’s largest annual carbon dioxide emitter.
According to the latest Global Carbon Budget projections, the country’s emissions could decrease by approximately 0.9% in 2026.
The reduction is being supported by lower oil consumption and the continued growth of renewable electricity generation.
China has invested heavily in solar panels, wind turbines, batteries and electric vehicles.
Its manufacturing capacity has also played an important role in reducing the cost of clean-energy technologies internationally.
The latest estimates suggest that China’s large-scale deployment of cleaner technologies is helping reduce pressure on fossil-fuel demand.
However, coal continues to play a major role in the country’s energy system.
The long-term trajectory will depend on whether renewable energy can consistently replace fossil-fuel generation rather than simply meeting additional electricity demand.
The decline also needs to be sustained across multiple years before researchers can confidently establish that China’s emissions have passed a lasting peak.
US Emissions Could Fall 1.3% as Coal Use Declines
The United States is also expected to record lower fossil-fuel emissions in 2026.
The Global Carbon Project forecasts a decline of approximately 1.3%.
The reduction partly reflects lower coal consumption after an earlier increase.
However, US energy policy remains contested.
President Donald Trump’s administration has supported domestic fossil-fuel production and sought to reduce certain restrictions on conventional energy development.
At the same time, market forces, technology costs and private investment continue influencing the country’s electricity mix.
The result is a complicated policy environment.
Fossil-fuel emissions may decline in a particular year even when national policies favor increased oil and gas production.
Likewise, higher production does not necessarily mean all the resulting fuel is consumed domestically.
For researchers, the central question is whether annual emissions reductions can be maintained over time.
India’s Emissions Expected to Rise 4.4%
Not every major economy is experiencing a decline.
India’s fossil-fuel emissions are projected to increase by approximately 4.4% in 2026.
That is higher than the country’s average annual emissions growth of around 3.5% over the previous decade.
India continues experiencing strong demand for electricity, transportation and industrial production.
Its population, expanding economy and development needs create substantial pressure to increase energy supply.
Although the country is expanding renewable electricity, fossil fuels remain important.
The projected increase demonstrates why global climate outcomes cannot be determined solely by the performance of China, Europe and the United States.
Emerging economies must also manage development and energy security while transitioning toward cleaner technologies.
For international policymakers, that creates an important financing challenge.
Developing countries often need access to affordable capital, reliable electricity infrastructure and technological assistance to reduce their dependence on high-emission energy sources.
Europe and Japan Also Expected to Reduce Emissions
The European Union is projected to record a 1.5% decline in fossil-fuel emissions during 2026.
Japan’s emissions are expected to decrease by approximately 1%.
Both economies have invested in energy efficiency and cleaner energy technologies.
The EU has also established extensive climate regulations and carbon-pricing mechanisms.
Japan continues pursuing changes to its energy mix while managing concerns about imported fuel supplies.
The Iran conflict has reinforced the importance of energy security in both regions.
For countries heavily dependent on imported fossil fuels, renewable electricity can offer strategic benefits beyond reducing carbon emissions.
Domestic renewable generation can reduce exposure to overseas supply disruptions.
However, wind and solar power also require supporting infrastructure to ensure reliable electricity.
The balance between security, affordability and decarbonization remains a major policy challenge.
Scientists Warn That the Emissions Decline May Be Temporary
Researchers involved in the Global Carbon Budget are warning against interpreting the 2026 forecast as proof that global emissions have permanently peaked.
Glen Peters, a research professor at Norway’s CICERO Center for International Climate Research, said a one-year decline does not establish a lasting turning point unless it is supported by structural changes.
That distinction is crucial.
Economic crises have previously produced temporary reductions in emissions.
During the global financial crisis and COVID-19 pandemic, reduced economic activity lowered fossil-fuel consumption.
But emissions later rebounded as economies recovered.
The current situation differs because the shock is directly affecting energy supplies and prices.
This may encourage lasting investments in alternative energy systems.
For example, a company that installs solar panels or replaces combustion-engine vehicles with electric alternatives may continue using those technologies even after oil prices fall.
However, lower prices could also encourage renewed fossil-fuel consumption.
The final outcome will depend on how businesses and governments respond.
The World Has Less Than Four Years of Carbon Budget Remaining
The new research also contains a serious warning about the Paris Agreement’s temperature goals.
Scientists estimate that the world has a remaining carbon budget of approximately 150 billion tonnes of CO₂ for a 50% chance of limiting long-term warming to 1.5 degrees Celsius above pre-industrial levels.
At current emission rates, that remaining budget could be exhausted in roughly four years.
The figure should not be interpreted as a prediction that global temperatures will suddenly increase by 1.5 degrees at the exact moment the budget is exhausted.
Instead, it represents the estimated cumulative carbon emissions consistent with a particular probability of meeting the temperature target.
Earth’s warming depends on the total buildup of greenhouse gases in the atmosphere over time.
That is why a single year of slightly lower emissions provides only limited relief.
The world needs substantial and sustained reductions.
Small annual fluctuations are not enough to reverse the long-term warming trend.
COP31 Faces Pressure to Turn Climate Promises Into Action
The Global Carbon Budget findings were released as the COP31 climate summit opened in Antalya, Turkey.
World leaders, scientists and negotiators are meeting from November 9 to 20 to discuss climate action, emissions reductions, adaptation and financing.
The latest report adds urgency to those discussions.
While clean-energy technologies are expanding, the overall pace remains insufficient to meet international climate objectives.
The United Nations has warned that current policies leave the world on a trajectory toward substantially more than 1.5 degrees of warming.
WWC ONE MEDIA examined the diplomatic challenge in COP31 Opens in Turkey With Urgent Warning to World: Climate Action Is Falling Far Behind as Extreme Weather Intensifies.
The summit is expected to focus on the gap between national commitments and the actual investments and policies needed to reduce emissions.
For climate-vulnerable countries, including the Philippines, the outcome is particularly important.
Rising temperatures can intensify risks involving extreme heat, drought and damaging weather.
International climate finance is also important for countries trying to protect communities and modernize energy systems without creating unsustainable debt burdens.
El Niño and Forest Fires Could Undermine Emissions Progress
The growing El Niño event adds another risk to the global carbon outlook.
El Niño can alter rainfall and temperature patterns across large regions.
In some tropical areas, reduced rainfall can increase drought risk and contribute to severe wildfire conditions.
These effects can release carbon dioxide from forests and peatlands while reducing the amount of carbon absorbed by vegetation.
The Global Carbon Project has warned that climate-related changes affecting natural carbon sinks could become increasingly important.
Forests and oceans currently absorb a substantial share of human-caused carbon emissions.
But prolonged drought, extreme heat and ecosystem damage can weaken that protection.
For the Philippines, growing El Niño risks are already raising concerns about agriculture, water supplies and household costs.
WWC ONE MEDIA previously reported on these risks in El Niño Emerges as Biggest Threat to Philippine Inflation as Prices Surge.
The article examined how drought and other weather disruptions can create economic pressure in climate-vulnerable economies.
The connection reinforces a broader reality: the climate crisis is not limited to energy production.
Land management, agriculture, forests and ecosystem protection are also central to controlling carbon emissions.
Green Finance Could Help Make the Decline Permanent
One possible path toward a sustained reduction in emissions is faster investment in low-carbon infrastructure.
Renewable energy projects, electricity grids, batteries, public transportation and industrial efficiency all require substantial financing.
Banks and capital markets are playing an increasingly important role.
Bloomberg reported in early November that fees earned by major banks from green-debt transactions were approaching $3 billion during 2026.
The trend reflects growing financial activity connected to environmentally focused investments.
WWC ONE MEDIA examined the development in Green Debt Fees Near $3 Billion as Banks Beat Fossil Fuels for Fifth Straight Year — But Is Wall Street Really Going Green?.
However, sustainable-finance activity should not be confused with guaranteed emissions reductions.
Financing must translate into completed projects that displace high-carbon energy, improve efficiency or otherwise deliver measurable environmental benefits.
The challenge is not simply raising money for green projects.
It is deploying capital fast enough to produce the structural changes needed for a durable emissions decline.
Could the Iran War Permanently Accelerate the Energy Transition?
The energy crisis has created strong incentives for governments to reduce dependence on imported oil and natural gas.
Countries seeking greater energy security may accelerate investment in renewable electricity, storage and electric transportation.
If those changes persist, the Iran war could have a lasting influence on global energy consumption.
But another possibility remains.
Should oil and gas markets stabilize, lower fuel prices could encourage renewed demand.
Some governments might also respond to supply disruptions by investing in additional domestic fossil-fuel production.
The resulting effects could move in opposite directions.
Greater renewable investment would help reduce emissions.
Expanded fossil-fuel consumption could offset some of those gains.
Consequently, the long-term climate impact cannot be determined solely from the 2026 forecast.
Researchers will need to monitor whether the change continues after the immediate energy shock fades.
The Bigger Picture: A Lower-Carbon Energy System or Just a Temporary Crisis?
The Global Carbon Budget 2026 presents a striking paradox.
For the first time in several years, the world may record a decline in emissions from fossil fuels and cement production.
That development reflects the impact of disrupted energy supplies, higher oil prices and expanding clean-energy technologies.
But the broader emissions picture remains deeply concerning.
Deforestation and other land-use changes are expected to push total carbon dioxide emissions to a new annual high.
Coal emissions are still projected to increase.
India’s fossil-fuel emissions continue growing, and researchers warn that global clean-energy expansion remains too slow to guarantee a lasting decline.
The world is also approaching the limits of its remaining carbon budget for the Paris Agreement’s 1.5-degree target.
For governments and investors, the lesson is clear.
A geopolitical crisis can temporarily suppress fossil-fuel consumption, but durable climate progress requires sustained improvements in technology, infrastructure, policy and investment.
As global fossil-fuel emissions prepare for a surprise decline in 2026, the most important question is not whether the Iran war has temporarily reduced oil demand—but whether the world can transform that disruption into lasting climate progress before emissions rebound and the remaining carbon budget disappears.
