London Daily

Focus on the big picture.
Thursday, Dec 04, 2025

A carbon tax is 'single most powerful' way to combat climate change, IMF says

A carbon tax is 'single most powerful' way to combat climate change, IMF says

Increasing the price of carbon emissions has received widespread backlash from those who argue the tax would raise energy bills. But some economists say it's the best way to mitigate climate change.
The idea of carbon taxes on fossil fuel corporations is spreading, but the idea has received backlash from those who argue the tax would raise energy bills.

Some economists say raising the cost of burning fossil fuels is the best way to mitigate climate change.

The global average carbon price is $2 a ton — a small fraction of the estimated $75 a ton price that is estimated to be consistent with a 2 C warming target, according to an International Monetary Fund report.

Increasing the price of carbon is the most efficient and powerful method of combating global warming and reducing air pollution, according to a new report from the International Monetary Fund.

While the idea of carbon taxes on fossil fuel corporations has been spreading across the globe in the past couple decades, increasing prices on carbon emissions has received widespread backlash from those who argue the tax would raise energy bills.

But economists have long contended that raising the cost of burning fossil fuels like coal, oil and gas is the best way to mitigate climate change, and that revenue raised from the tax can be returned to consumers through rebates and dividends.

“We view fiscal policy as a crucial way of combating climate change,” said Paolo Mauro, deputy director of Fiscal Affairs Department at the IMF. “You can reshape the tax system and you can reshape fiscal policy more generally in order to discourage carbon emissions.”

But economists have long contended that raising the cost of burning fossil fuels like coal, oil and gas is the best way to mitigate climate change, and that revenue raised from the tax can be returned to consumers through rebates and dividends.

“We view fiscal policy as a crucial way of combating climate change,” said Paolo Mauro, deputy director of Fiscal Affairs Department at the IMF. “You can reshape the tax system and you can reshape fiscal policy more generally in order to discourage carbon emissions.”

Global temperatures are projected to rise by roughly 4 C above preindustrial levels by 2100. The 2015 Paris climate accord aims to limit warming to 2 C, with a long shot goal of 1.5 C. Most countries are not on track to achieve those targets, and the U.S. plans to formally withdraw from the Paris agreement in 2020.

More than 40 governments globally have implemented a form of carbon pricing, whether it be through direct taxation on fossil fuel producers or cap-and-trade programs. However, the global average carbon price is $2 a ton — a small fraction of the estimated $75 a ton price in 2030 consistent with a 2 C warming target, according to the report.

The IMF estimates a $75 a ton carbon tax will lead to the amount of emissions scientists estimate will correspond to 2 C of warming. At that level, coal prices would rise by more than 200% above baseline levels in 2030.

Under the same tax, the price of natural gas, which is used for power generation and for heating and cooking in households, would increase by 70% on average, with most of the impact in North and South America, where baseline prices are much lower. Gasoline prices would rise by 5% to 15% in most countries.

For electricity and gas, the price increases might seem substantial. However, those price rises are within the bounds of price fluctuations experienced during the past few decades, according to the IMF.

“If you think about it from a historical perspective, gasoline prices fluctuate ... much more than that,” Mauro said.

“Carbon taxes ... and similar arrangements to increase the price of carbon, are the single most powerful and efficient tool to reduce domestic fossil fuel CO2 emissions,” the report said.

Some countries have prices on carbon
In the U.S., a slew of presidential candidates have vowed to impose a carbon tax on corporations, proposals which have come under attack from President Donald Trump and Republicans, who are repealing environmental regulations.

Most carbon pricing efforts in the U.S. have occurred on the state level. Nine states in the Northeast participate in a cap-and-trade program that hands out carbon pollution permits to power plants, and other states like New Jersey might join that system.

Cap-and-trade programs work by taxing companies if they produce higher emissions than their permit allows. Companies that reduce emissions can sell unused permits to other firms. The government also narrows the number of permits every year, reducing overall emissions.

California has its own cap-and-trade program that includes other polluters in addition to power plants.

In Britain, coal use has gone down substantially after a carbon tax in 2013 prompted electric utilities to switch away from coal.

Canada has a carbon tax that started at $15 per ton of carbon dioxide this year and will rise to $38 per ton by 2022. And China plans to start a cap-and-trade program beginning in 2020.

“The cost of achieving emissions reductions through these approaches would be lower than the costs to people and the planet from climate change,” the report said.

“Finance ministers in all countries are central to designing and implementing policies to meet emissions reductions in the most efficient, equitable, and socially and politically acceptable way.”
Newsletter

Related Articles

0:00
0:00
Close
UK Inquiry Finds Putin ‘Morally Responsible’ for 2018 Novichok Death — London Imposes Broad Sanctions on GRU
India backs down on plan to mandate government “Sanchar Saathi” app on all smartphones
King Charles Welcomes German President Steinmeier to UK in First State Visit by Berlin in 27 Years
UK Plans Major Cutback to Jury Trials as Crown Court Backlog Nears 80,000
UK Government to Significantly Limit Jury Trials in England and Wales
U.S. and U.K. Seal Drug-Pricing Deal: Britain Agrees to Pay More, U.S. Lifts Tariffs
UK Postpones Decision Yet Again on China’s Proposed Mega-Embassy in London
Head of UK Budget Watchdog Resigns After Premature Leak of Reeves’ Budget Report
Car-sharing giant Zipcar to exit UK market by end of 2025
Reports of Widespread Drone Deployment Raise Privacy and Security Questions in the UK
UK Signals Security Concerns Over China While Pursuing Stronger Trade Links
Google warns of AI “irrationality” just as Gemini 3 launch rattles markets
Top Consultancies Freeze Starting Salaries as AI Threatens ‘Pyramid’ Model
Macron Says Washington Pressuring EU to Delay Enforcement of Digital-Regulation Probes Against Meta, TikTok and X
UK’s DragonFire Laser Downs High-Speed Drones as £316m Deal Speeds Naval Deployment
UK Chancellor Rejects Claims She Misled Public on Fiscal Outlook Ahead of Budget
Starmer Defends Autumn Budget as Finance Chief Faces Accusations of Misleading Public Finances
EU Firms Struggle with 3,000-Hour Paperwork Load — While Automakers Fear De Facto 2030 Petrol Car Ban
White House launches ‘Hall of Shame’ site to publicly condemn media outlets for alleged bias
UK Budget’s New EV Mileage Tax Undercuts Case for Plug-In Hybrids
UK Government Launches National Inquiry into ‘Grooming Gangs’ After US Warning and Rising Public Outcry
Taylor Swift Extends U.K. Chart Reign as ‘The Fate of Ophelia’ Hits Six Weeks at No. 1
250 Still Missing in the Massive Fire, 94 Killed. One Day After the Disaster: Survivor Rescued on the 16th Floor
Trump: National Guard Soldier Who Was Shot in Washington Has Died; Second Soldier Fighting for His Life
UK Chancellor Reeves Defends Tax Rises as Essential to Reduce Child Poverty and Stabilise Public Finances
No Evidence Found for Claim That UK Schools Are Shifting to Teaching American English
European Powers Urge Israel to Halt West Bank Settler Violence Amid Surge in Attacks
"I Would Have Given Her a Kidney": She Lent Bezos’s Ex-Wife $1,000 — and Received Millions in Return
European States Approve First-ever Military-Grade Surveillance Network via ESA
UK to Slash Key Pension Tax Perk, Targeting High Earners Under New Budget
UK Government Announces £150 Annual Cut to Household Energy Bills Through Levy Reforms
UK Court Hears Challenge to Ban on Palestine Action as Critics Decry Heavy-Handed Measures
Investors Rush Into UK Gilts and Sterling After Budget Eases Fiscal Concerns
UK to Raise Online Betting Taxes by £1.1 Billion Under New Budget — Firms Warn of Fallout
Lamine Yamal? The ‘Heir to Messi’ Lost to Barcelona — and the Kingdom Is in a Frenzy
Warner Music Group Drops Suit Against Suno, Launches Licensed AI-Music Deal
HP to Cut up to 6,000 Jobs Globally as It Ramps Up AI Integration
MediaWorld Sold iPad Air for €15 — Then Asked Customers to Return Them or Pay More
UK Prime Minister Sir Keir Starmer Promises ‘Full-Time’ Education for All Children as School Attendance Slips
UK Extends Sugar Tax to Sweetened Milkshakes and Lattes in 2028 Health Push
UK Government Backs £49 Billion Plan for Heathrow Third Runway and Expansion
UK Gambling Firms Report £1bn Surge in Annual Profits as Pressure Mounts for Higher Betting Taxes
UK Shares Advance Ahead of Budget as Financials and Consumer Staples Lead Gains
Domino’s UK CEO Andrew Rennie Steps Down Amid Strategic Reset
UK Economy Stalls as Reeves Faces First Budget Test
UK Economy’s Weak Start Adds Pressure on Prime Minister Starmer
UK Government Acknowledges Billionaire Exodus Amid Tax Rise Concerns
UK Budget 2025: Markets Brace as Chancellor Faces Fiscal Tightrope
UK Unveils Strategic Plan to Secure Critical Mineral Supply Chains
UK Taskforce Calls for Radical Reset of Nuclear Regulation to Cut Costs and Accelerate Build
×