| Key
Points |
- Ten countries burning most fossil
fuels drive the bulk of global CO₂ emissions and will decide
whether the world stays within safe climate limits 1.
- Emissions from coal, oil and gas
hit record highs in 2023 even as clean energy investment
accelerates 2.
- Policy responses among major
emitters range from aggressive coal phase‑outs to renewed
fossil fuel expansion and subsidy regimes 3.
- By 2030, fossil fuel demand is
projected to peak globally but remain stubbornly high in
several producer economies 4.
- Communities in the top‑emitting
countries already face escalating social, economic and
ecological damage from a warming climate 5.
- Planners and policymakers must
deliberately wind down fossil fuel production while scaling
renewables, efficiency and just transition measures 6.
|
Heating the planet, one barrel and tonne at a time
Burning coal, oil and gas is still pushing global greenhouse gas
emissions to record highs, even as the science makes clear that most
fossil fuels must stay in the ground to avoid catastrophic climate
change.2
Fossil fuels account for nearly 90% of carbon dioxide released by
human activity, driving an “enhanced greenhouse effect” where extra
heat is trapped in the atmosphere and oceans.1
That additional heat is already supercharging deadly heatwaves,
extreme rainfall, coral bleaching and bushfires, with impacts felt
from Chinese manufacturing hubs to Indian farms and American suburbs.5
Responsibility for these emissions is highly concentrated, with ten
economies led by China, the United States, India, the European Union
and Russia producing the majority of global fossil‑fuel CO₂ each year.1
These same countries are also central to solutions, because their
policies on coal power, oil demand, gas infrastructure and industry
will set the pace of the global energy transition this decade.4
Recent data suggests global demand for fossil fuels could peak before
2030 under current policies, but not fall fast enough to align with
the Paris Agreement’s 1.5C temperature goal.4
The choices these major emitters make now – whether to double down on
fossil fuels or accelerate clean alternatives – will shape social
stability, economic resilience and ecological survival far beyond
their borders.5
The big ten: who burns the most
Recent emissions inventories show that China, the United States,
India, the EU‑27, Russia, Japan, Indonesia, Iran, Saudi Arabia and
South Korea are the world’s largest national greenhouse gas emitters,
dominated by fossil fuel combustion.1
Together, these ten economies account for well over half of global
fossil fuel consumption and nearly two‑thirds of greenhouse gas
emissions, despite representing a smaller share of the world’s
population.1
China alone is responsible for more annual CO₂ from fossil fuels than
any other country, driven by coal‑fired power, heavy industry and
rising oil use for transport.9
The United States follows as the largest historical emitter, with
high per‑capita oil and gas consumption, particularly in transport,
buildings and electricity generation, although coal has declined.9
India’s emissions are growing rapidly from a lower base, as coal
still dominates power generation and energy demand rises with
industrialisation and urbanisation.9
The European Union’s emissions are falling overall, but gas‑fired
power, industry and transport still produce substantial CO₂, and
several member states remain reliant on imported fossil fuels.7
Russia, Saudi Arabia and Iran stand out as major fossil fuel
exporters whose domestic economies and state budgets are deeply tied
to oil and gas production and associated emissions.5
Are the biggest emitters changing course
All of the top‑emitting countries have signed the Paris Agreement and
pledged to reduce emissions, yet their actual policies on coal, oil
and gas vary widely in ambition and credibility.5
China has committed to peak CO₂ emissions before 2030 and carbon
neutrality before 2060, has already met its 2030 non‑fossil
electricity target early and is adding record amounts of solar and
wind capacity, but it is also still approving and building new coal
power plants.10
The United States has legislated major clean energy subsidies and
standards through laws such as the Inflation Reduction Act, which are
expected to cut power sector emissions and accelerate electric
vehicles, yet federal leasing for oil and gas and continued exports
undermine a full phase‑out trajectory.10
India has expanded renewables rapidly and announced a net zero target
for 2070, alongside initiatives for green hydrogen and energy
efficiency, but it continues to rely on coal for grid stability and
affordable power for development.9
The European Union has adopted a 2040 climate target, strengthened
its emissions trading scheme and set deadlines to phase out unabated
coal in many member states, though gas infrastructure and political
backlash threaten to slow reforms.7
Japan and South Korea have pledged carbon neutrality by mid‑century
and are tightening electricity plans, joining international alliances
to phase down coal, while still banking on technologies such as
co‑firing ammonia and hydrogen in fossil plants.1
Major producers like Russia, Saudi Arabia, Iran and Indonesia
continue to plan new oil, gas or coal projects, even as international
institutions and civil society call for fossil fuel subsidy reform and
clear end dates for extraction and combustion.5
What fossil fuel demand could look like in 2030
Energy outlooks from the International Energy Agency project that
under today’s stated policies, global demand for coal, oil and gas
will peak before 2030, largely due to rapid growth in renewables,
electric vehicles and efficiency.4
In China, coal use is expected to plateau and then gradually decline
this decade as solar, wind and nuclear expand, even though some new
coal plants are being built for grid security and industrial demand.4
Oil demand in advanced economies including the United States, the
European Union, Japan and South Korea is forecast to fall by 2030 as
electric vehicles gain market share and fuel economy standards
tighten.14
By contrast, oil and gas demand is projected to remain comparatively
resilient in producer economies such as Saudi Arabia, Russia and Iran,
unless global climate policy and clean technology deployment move far
faster than current trajectories.17
India and Indonesia are expected to see continued growth in energy
demand overall, with scenarios showing coal and gas use peaking later
if clean energy finance, technology transfer and grid upgrades fall
short.8
Across all major emitters, announced pledges that fully implement net
zero targets would cut fossil fuel use more sharply by 2030, but most
countries have yet to align their detailed plans, investment decisions
and subsidy regimes with those goals.4
The gap between declared ambition and concrete policy on fossil fuels
will determine whether the world overshoots 1.5C in the early 2030s or
manages a rapid, more orderly decline in emissions.9
Social and economic faultlines
The social consequences of continued fossil fuel use in the
top‑emitting countries are already visible in worsening heat stress,
lost labour productivity, food insecurity and mounting health impacts
from air pollution.3
Farm workers in India and Indonesia are experiencing more days of
dangerous heat and humidity, which reduce working hours and incomes
while increasing the risk of heatstroke and kidney disease.3
In the United States, heatwaves and wildfire smoke linked to fossil
fuel‑driven warming are straining health systems, raising mortality
and adding billions of dollars in economic losses each year.6
China’s manufacturing regions and coastal cities face rising
climate‑related disruption from typhoons, floods and droughts,
threatening supply chains that serve global markets.9
Communities near coal mines, oilfields and gas export hubs from
Russia to Saudi Arabia and Iran remain economically dependent on
fossil fuel jobs and royalties, which exposes them to volatility as
global demand shifts.5
Managing a just transition – where workers, regions and low‑income
households are supported through reskilling, social protection and
public investment – has become a central political challenge in each
of these economies.8
Without deliberate planning, the eventual decline of fossil fuel
industries could deepen inequality and trigger social unrest,
especially in regions that lack economic diversification beyond coal,
oil or gas.5
Ecological and cultural costs of endless combustion
Ecosystems in the major emitting countries are already under acute
stress from the warming and weather extremes driven by continued
fossil fuel combustion.3
Rising temperatures and changing rainfall are damaging forests,
wetlands and croplands across China, India, Russia and the United
States, increasing the risk of fire, pest outbreaks and crop failure.9
Ocean warming and acidification, fuelled by CO₂ from fossil fuels,
threaten fisheries and coastal communities in Japan, South Korea,
Indonesia and Iran, undermining food security and cultural practices
tied to the sea.3
Indigenous communities from Siberia to the Persian Gulf and North
America are seeing traditional lands and livelihoods transformed by
melting permafrost, changing animal migrations and more intense
storms.5
Cultural heritage sites and historic cities in Europe, the Middle
East and Asia face increasing risk from sea‑level rise, flooding and
heatwaves, challenging conservation efforts and tourism‑based
economies.7
These ecological and cultural losses are cumulative and often
irreversible on human timescales, which means every additional year of
high fossil fuel emissions narrows the space for effective adaptation.9
The burden falls disproportionately on vulnerable groups – including
low‑income households, Indigenous peoples and small‑scale farmers –
who have contributed least to historic fossil fuel emissions.5
Politics of delay and transition
Fossil fuel politics in the top‑emitting countries are shaped by
powerful incumbents, from national oil companies and utilities to
industrial lobbies and regions reliant on coal and gas revenue.5
At recent UN climate summits, more than 80 countries have pushed for
a clear global roadmap to phase out fossil fuels, while major
producers and petrostates have fought to weaken or delay commitments.4
In the European Union and parts of the United States, political
backlash against climate policies has emerged as parties capitalise on
concerns about energy prices, jobs and cultural identity.7
China and India argue that developed countries should move fastest to
cut emissions and provide more finance and technology for clean
energy, highlighting historical responsibility and per‑capita
disparities.12
Producer economies such as Russia, Saudi Arabia and Iran depend
heavily on oil and gas export revenue, which creates strong incentives
to resist rapid global decarbonisation without credible pathways for
diversification.17
International initiatives like Just Energy Transition Partnerships
and emerging campaigns for a Fossil Fuel Non‑Proliferation Treaty aim
to co‑ordinate finance, policy and oversight for a fair phase‑down.2
Yet current pledges and funding remain far short of what is needed to
support coal regions in South Africa and Indonesia, oil‑dependent
economies in the Middle East, and gas‑linked communities in Russia and
the United States.5
What planners and policymakers must do now
For regional planners and policymakers in the world’s major emitting
countries, reducing long‑term climate risk now depends on deliberately
managing the decline of fossil fuel use rather than assuming markets
will solve it.8
Planning systems need to embed carbon budgets and climate risk
assessments into decisions on new power stations, industrial zones,
housing developments, ports and transport corridors.5
Regulators and treasuries must phase out fossil fuel subsidies and
reorient public spending toward energy efficiency, public transport,
storage, grid upgrades and distributed renewables that cut both
emissions and household bills.5
Labour market and education policies should support workers in coal
mines, oilfields, gas plants and heavy industry with retraining,
income support and early‑warning systems for industrial restructuring.8
Urban planners in megacities from Beijing to Delhi, Jakarta and
Houston can reduce fossil fuel dependence by prioritising compact,
transit‑oriented development, building standards that cut energy
demand and heat‑resilient public spaces.3
Critically, planners must involve affected communities, Indigenous
groups and workers in decision‑making, to build legitimacy for
transition plans and reduce the risk of political backlash.5
Coordinated regional planning that aligns land‑use, transport, energy
and industry can lock in lower‑carbon pathways now and avoid expensive
retrofits or stranded assets later this century.4
Stopping the burn: adaptation, policy and the end of fossil fuels
Even with rapid emissions cuts, climate impacts will intensify in the
coming decades, which means adaptation must happen alongside an
accelerated phase‑out of coal, oil and gas in the top‑emitting
countries.9
Adaptation priorities include heat‑resilient housing and workplaces,
upgraded drainage and flood defences, climate‑smart agriculture,
coastal protection and disaster‑ready health systems in vulnerable
regions.3
To stop burning fossil fuels, governments need clear timelines to end
new exploration, halt approvals for unabated coal plants and retire
existing fossil infrastructure in line with 1.5C‑consistent carbon
budgets.5
National climate plans should spell out how and when coal, oil and
gas production and consumption will decline, backed by laws, economic
instruments and public investment that make clean energy the default
choice.5
Internationally, richer high‑emitting countries have a responsibility
to provide far more climate finance and technology support to emerging
economies, so they can leapfrog to renewables instead of locking in
fossil‑fuelled growth.12
Ultimately, phasing out fossil fuels is less a question of technical
feasibility than of political will, public pressure and the speed at
which governments decide to shift power, money and planning away from
coal, oil and gas.1
The decisions taken this decade in Beijing, Washington, Delhi,
Brussels, Moscow, Riyadh, Jakarta, Tehran, Tokyo and Seoul will
determine whether future generations inherit a liveable climate or a
dangerously destabilised one.9
References
- Global Carbon Project – Fossil CO₂ emissions at
record high in 2023
- World Resources Institute – Countries phasing out
coal the fastest
- NASA – Emissions from fossil fuels continue to
rise
- Carbon Brief – IEA: Fossil‑fuel use will peak
before 2030
- IISD – Next generation national climate plans must
phase out fossil fuels
- Stanford – Global carbon emissions from fossil
fuels reached record high in 2023
- Climate Action Tracker – EU policies and action
- UNFCCC / IISD – Fossil fuel phase‑out and a just
transition
- EDGAR – GHG emissions of all world countries 2024
report
- Climate Council – Power Shift: The US, China and
the race to net zero
- List of countries by greenhouse gas emissions
- IEA – Oil 2025: Analysis and forecast to 2030
- IEEJ – A global energy outlook to 2035 with
strategic considerations
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