Forget the poetic flap of a butterfly’s wings in Beijing causing rain in Central Park. Climate issues in Asia-Pacific are measured in superlatives. The world’s biggest population. Two of the three largest carbon dioxide-emitting countries and the largest share of emissions globally. […]
By Ian Parry
Over the next decade, global greenhouse gas emissions need to be cut by 25– 50 percent to be on track for meeting the 2015 Paris Agreement goal of containing global warming to 1.5–2°C.The United States intends to do its part. Its climate plan pledges US carbon neutrality by 2050, with a 2030 emissions target to be announced shortly.
By IMF Staff
Unaddressed, climate change will entail a potentially catastrophic human and economic toll, but it’s not too late to change course.
Global temperatures have increased by about 1°C since the pre-industrial era because of heat-trapping green-house gases accumulating in the atmosphere. Unless strong action is taken to curb emissions of these gases, global temperatures could increase by an additional 2–5°C by the end of this century. Keeping temperatures to levels deemed safe by scientists requires bringing net carbon emissions to zero on net globally by mid-century.
…economic policy tools can pave a road toward net zero emissions by 2050 even as the world seeks to recover from the COVID-19 crisis.
In the latest World Economic Outlook we make the case that economic policy tools can pave a road toward net zero emissions by 2050 even as the world seeks to recover from the COVID-19 crisis. We show that these policies can be pursued in a manner that supports economic growth, employment and income equality.
The manageable costs of mitigation
Economic policies can help address climate change through two main channels: by affecting the composition […]
As the Group of Twenty industrialized and emerging market economies (G-20) finance ministers and central bank governors gather in Riyadh this week, they face an uncertain economic landscape.
After disappointing growth in 2019, we began to see signs of stabilization and risk reduction, including the Phase 1 U.S.-China trade deal. In January, the IMF projected growth to strengthen from 2.9 percent in 2019 to 3.3 percent in 2020 and 3.4 percent in 2021. This projected uptick in growth is dependent on improved performance in some emerging market and developing economies. […]
Version in 中文 (Chinese)
A single policy could do it all for China. A carbon tax—an upstream tax on the carbon content of fossil fuel supply—could dramatically cut greenhouse gases, save millions of lives, soothe the government’s fiscal anxieties, and boost green growth. […]
By Ian Parry
With global leaders set to start signing the landmark Paris Agreement on climate change tomorrow—April 22 is Earth Day—at the United Nations in New York, countries will embark on the potentially difficult and contentious issue of setting prices for greenhouse gas emissions, most importantly carbon dioxide (CO2). Our back of the envelope calculations show that most large emitters will need to charge anywhere from $50 to $100 per ton or more (in current prices) by 2030 to meet their commitments to reduce carbon emissions.
US$5.3 trillion; 6½ percent of global GDP—that is our latest reckoning of the cost of energy subsidies in 2015. These estimates are shocking. The figure likely exceeds government health spending across the world, estimated by the World Health Organization at 6 percent of global GDP, but for the different year of 2013. They correspond to one of the largest negative externality ever estimated. They have global relevance. And that’s not all: earlier work by the IMF also shows that these subsidies have adverse effects on economic efficiency, growth, and inequality.
What are energy subsidies
We define energy subsidies as the difference between what consumers pay for energy and its “true costs,” plus a country’s normal value added or sales tax rate. These “true costs” of energy consumption include its supply costs and the damage that energy consumption inflicts on people and the environment. These damages, in turn, come from carbon emissions and hence global warming; the health effects of air pollution; and the effects on traffic congestion, traffic accidents, and road damage. Most of these externalities are borne by local […]
By Ian Parry
The time has come to end hand wringing on climate strategy, particularly controlling carbon dioxide (CO2) emissions. We need an approach that builds on national self-interest and spurs a race to the top in low-carbon energy solutions. Our findings here at the IMF—that carbon pricing is practical, raises revenue that permits tax reductions in other areas, and is often in countries’ own interests—should strike a chord at the United Nations Climate Summit in New York next week. Let me explain how.
Ever since the 1992 Earth Summit, policymakers have struggled to agree on an international regime for controlling emissions, but with limited success. Presently, only around 12 percent of global emissions are covered by pricing programs, such as taxes on the carbon content of fossil fuels or permit trading programs that put a price on emissions. Reducing CO2 emissions is widely seen as a classic “free-rider” problem. Why should an individual country suffer the cost of cutting its emissions when the benefits largely accrue to other countries and, given the long life of emissions and the gradual adjustment of the climate […]