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In 1964, US Supreme Court’s Justice failed to define pornography, but concluded that “I know it when I see it”. We need the same common sense approach to fossil fuel subsidy reform.

An avalanche of public money still supports production and consumption of coal, oil and gas, despite multiple pledges to phase out such subsidies.

The Netherlands is leading a “first-mover” initiative at Cop28 climate talks to tackle the issue, following a national assessment that its fossil fuel subsidies amounted €39.7 – 46.4 billion in 2022, and thousands of climate activists protesting in The Hague.

Two G20 countries (Canada and France) and ten smaller economies joined the launch of the coalition in Dubai on 9 December.

This is welcome, but it risks getting mired in the same methodological rationalizations that have always held back action.

The coalition has signed up to improve “transparency”, identify “barriers” and establish a “dialogue” to reform fossil fuel subsidies. Instead, they should change the defaults and push for a blanket phaseout of all government support to fossil fuels, unless subsidizers can prove such measures address energy poverty or just transition better than any other readily available policy tool.

A trillion-dollar issue 

In 2022, public financial support for fossil fuels, in the form of subsidies, investments by state-owned enterprises (SOEs), and lending from public financial institutions, exceeded $1.7 trillion globally — a record high according to IISD’s Burning Billions report.

Phasing out these subsidies is challenging because it cuts across all of the economy. It takes a whole-government commitment and broad-based support from various ministries, political groups, and businesses, not just diplomats and environment officials. For example, in the US, a subsidy reform package has been submitted by the Democratic party administration, then blocked by Congress many times.

There is a role for international cooperation on fossil fuel subsidy reform for two reasons. First, it is politically easier for some countries to make progress as a first movers’ collective than be “lone wolves”. Second, countries need expert advice and technical assistance for the reform design and implementation.

Credibility challenge after many failures

The new coalition members must up their game given the previous failures on fossil fuel subsidy reform commitments under G7, G20, and APEC (since 2009), Sustainable Development Goals, UNFCCC Cop26, and many other related efforts such as the Friends of Fossil Fuel Subsidy Reform, the Agreement on Climate Change, Trade and Sustainability (ACCTS), the ministerial statement at the WTO and the Global Biodiversity Framework.

To be credible reform champions, the new coalition members must take on commitments to phase out subsidies to both production and consumption of fossil fuels by 2025 in the OECD countries, and by 2030 deadline in the non-OECD countries (reflective of the G7 commitment and SDG 12.c timelines, respectively). They must convert these commitments into specific national policy frameworks and include fossil fuel subsidy reform in their national climate plans by next year’s Cop29 summit.

Such a model is key to the success of the Clean Energy Transition Partnership, under which some of the same governments and other signatories agreed to implement domestic policies to stop international financing of fossil fuels within one year of joining.

Bold and targeted moves needed 

The Dutch initiative’s current focus on reforming tax cuts for aviation and shipping is novel, but reference to such agreements should not serve as a distraction from the reforms that must be undertaken at the national level.

For example, tax breaks and other subsidies for oil and gas exploration and production have no justification given the scientific consensus that there is no room for new oil, gas and coal developments in a Paris-aligned world.

The countries that have reformed fossil fuel subsidies in past decades did not do it because of international climate commitments. Rather it was driven by fiscal pressure including conditional loans from the IMF and the World Bank (the Dominican Republic, Egypt, or Ukraine) or the political will to diversify their energy mix and support domestic renewable energy (India).   

These and other examples show that fossil fuel subsidy reform efforts are most effective when countries commit to reinvesting a share of saved expenditures and generated revenues. This helps build public support for reform efforts and can address negative impacts of fossil fuel price increases on households. Members of the new coalition must commit to reinvesting subsidy reform savings and revenues generated from fossil fuel taxation to clean energy and just transition programs.

Ivetta Gerasimchuk is director of the energy programme, leading international strategy work at the International Institute for Sustainable Development.

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Every country needs a model to help optimise its energy transition

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Claver Gatete is Executive Secretary of the UN Economic Commission for Africa. Jason Veysey is Energy Modeling Program Director and Senior Scientist at the Stockholm Environment Institute. Lisa Sachs is Director of the Columbia Center on Sustainable Investment at Columbia University.

The case for global energy transition has rarely been clearer. The closure of the Strait of Hormuz earlier this year exposed the cost of unplanned, fossil-dependent systems, while the falling cost of renewables, the rising penetration of electric vehicles, and the growing value of demand flexibility have made the direction of travel obvious. The benefits of a clean, secure, integrated system are no longer in dispute. What remains unclear is how to build it.

Countries around the world have called for faster renewable energy deployment and alternative energy arrangements. A secure, affordable, resilient, decarbonised system requires specific investments in specific places in a specific sequence, optimised across sectors and borders. But very few governments have the analytical foundation to translate those imperatives into investment.

The two instruments that are supposed to determine investment priorities for decarbonisation – Nationally Determined Contributions (NDCs) and country platforms – cannot answer the most basic question facing any country undertaking an energy transition: what should the energy system look like?

    To close this gap, every country needs a bankable, economy-wide optimisation model for its energy system. A model is not a plan, but it can help answer the critical question of what the future energy system should look like. It shows how optimal scenarios vary as assumptions and policies are adjusted, calculates investment requirements and sequencing, and quantifies how system costs are affected by assumptions, policies, and exogenous variables like trade policy and financing terms.

    Tool for efficient investment

    Optimisation is a simplified way of simulating an energy system, but it can be an extremely powerful tool for moving energy planning from reactive (how do we manage the disparate actions in the energy system?) to intentional (what energy system underpins our national objectives?). A model can show how optimal scenarios vary as assumptions and policies are adjusted, and how investment requirements are quantified and sequenced.

    Optimisation models can treat the energy system and the sectors it serves as an integrated whole, optimising across sectors and projects in ways that can be mutually reinforcing. If considered independently, growth in industrial demand, transport electrification, and digital infrastructure can add stress to the energy system. But an optimised plan can arrange these and other changes in an efficient, synergistic way.

    Two to tango: How governments can unlock private investment for national climate goals

    New load can be added where low-cost power is available; industrial customers can ensure the viability of investments in energy supply; electric vehicle charging policy can smooth load curves and reduce costs for all consumers.

    Additionally, optimisation modeling can also change the financeability of investments. Taken alone, each project faces uncertainty about the rest of the system, which raises the cost of capital and causes projects to stall or unwind after contracts are signed. A coherent, optimised plan makes visible the coordination that private capital would otherwise have to bet on: identified offtake, sequenced and committed transmission, contracted power supply, and so on.

    What COP31 and COP32 should do

    The upcoming COPs in Turkey and Ethiopia can shift the center of gravity of international climate cooperation from fragmented commitments to planning. Three moves are urgently needed.

    First, optimised, economy-wide, long-term energy system planning must be the foundation on which any meaningful NDC, country platform, or finance commitment rests. NDCs are typically drafted by environment or single-line ministries, with limited cross-sectoral input from ministries of energy, finance, and planning. They contain targets, derived from sectoral strategies or national commitments, not from an analytically grounded picture of what the energy system should look like and what investments would make it work. Country platforms are generally a portfolio of investments assembled from existing project pipelines, rather than derived from a system-level analysis of what an optimised, decarbonised energy system would require.

    Second, recognise regions as a key planning unit. Modern integrated energy systems are inherently regional. Renewable endowments are unevenly distributed; balancing variable supply across borders lowers aggregate cost, reduces redundant backup capacity, and unlocks economies of scale no individual nation can achieve. Many energy investments in Southeast Asia, East Africa, Southern Africa and Central Asia may only be financeable in a regional context. Assessing domestic infrastructure without regional optimisation perpetuates the perception that decarbonisation is more expensive than it is.

    COP31 leaders unveil global targets, with spotlight on electrification

    Third, finance the planning capacity. A coordinated commitment by multilateral development banks, bilateral donors, and philanthropic partners to help every region and its constituent countries develop and maintain their own modelling capability, with open-source tools and regional analytical hubs, would close the most consequential gap in the current architecture. The cost is small relative to current spending on country platforms, failed project preparation, and misallocated infrastructure investment.

    This includes supporting regional institutions such as the ASEAN Centre for Energy, the African Energy Commission, regional power pools, and the Latin American and Caribbean Energy Organization to determine what optimised regional systems require. Country-by-country pledging, repeated at every COP, will not deliver what meaningfully integrated systems can.

    The 2026 energy crisis made the cost of unplanned, fossil-dependent systems newly visible. That window of clarity will close. The international community should seize the moment to build the planning foundation that has been missing for thirty years, rather than commissioning another round of NDCs or pledges, striving for outcomes neither was designed to deliver.

    The post Every country needs a model to help optimise its energy transition appeared first on Climate Home News.

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    Explainer: How the ‘super El Niño’ will reshape the world’s weather

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    The world is currently experiencing what is expected to become the strongest El Niño on record – dubbed a “super El Niño” by many.

    El Niño is the warm phase of a recurring climate pattern in the tropical Pacific that releases heat from the ocean into the atmosphere.

    This temporarily raises global temperatures and reshapes rainfall and extreme weather around the world – impacting the lives of billions of people.

    The current El Niño event began in June and is expected to last into 2027.

    El Niño is part of a wider climate pattern called the El Niño-Southern Oscillation (ENSO) cycle.

    The ENSO cycle also has a cool phase, known as La Niña, as well as a “neutral” phase. El Niño and La Niña events typically last between nine and 12 months, but can go on longer.

    Below, Carbon Brief explains how the ENSO cycle works, its impacts on extreme weather and global temperatures and why this El Niño event is projected to be the most intense since records began.

    The post Explainer: How the ‘super El Niño’ will reshape the world’s weather appeared first on Carbon Brief.

    https://interactive.carbonbrief.org/el-nino-explainer/index.html

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    Analysis: The two largest reservoirs in the US have hit record-low levels

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    The second-largest reservoir in the US reached a record-low water height on Saturday – just days after the country’s largest reservoir broke its own record. 

    Both Lake Mead and Lake Powell are located on the Colorado River.

    They provide water for populations across seven US states in the south-western US, with around 40 million people getting some or all of their municipal water from the Colorado River.

    The river also provides water for around 5.5m acres (22,258 square kilometres) of farmland across Colorado, Arizona, California and the other states in the river basin.

    Experts tell Carbon Brief that climate change, population growth and over-consumption are all contributing to the current record-low levels of the reservoirs.

    Record lows

    At full capacity, Lakes Mead and Powell can hold a combined 68 cubic kilometres of water – enough to supply all household consumption in the contiguous US for nearly 1.5 years. However, the water level in both reservoirs has been declining for decades.

    The chart below shows the water level of Lake Mead, in metres above mean sea level. The reservoir, which began to fill in 1935 following the construction of the Hoover Dam, has a “full pool” maximum capacity of 347.60 metres. The water level in Lake Mead reached a record low of 317.11 metres on 7 August.

    Lake Mead, the larges reservoir in the US, reached record-low water levels in early August.

    The following chart shows the water level of Lake Powell, in metres above mean sea level. Lake Powell’s full-pool level is 1,127.76 metres.

    While the reservoir reached its maximum capacity several times in the 1980s, it has not done so since. On 15 August, the water level in Lake Powell was recorded at a new record-low of 1,072.87 metres.

    Lake Powell, the second-largest reservoir in the US, reached record-low water levels in mid-August

    Both reservoirs have continued to decline in the days since breaking their respective records. The downward trend will largely continue in both lakes until next spring, when the snowpack in the mountains of the Upper Colorado River Basin begins to melt, says Dr Jack Schmidt, a senior research scientist at Utah State University’s Center for Colorado River Studies. He tells Carbon Brief:

    “The big dilemma of the moment is that we’re only in the middle of August, and we have no assurance of what the coming winter will be. The only thing we can be sure of is that we will be depleting overall total basin reservoir storage from now until, roughly, early April.”

    Compounding factors

    The record lows across the two reservoirs are the result of several compounding factors, experts tell Carbon Brief.

    Since the turn of the 20th century, the amount of water flowing along the Upper Colorado River has declined by about 20%. Research suggests that half of this decline can be attributed to human-induced climate change.

    Most of the river’s streamflow comes from the snowpack of the Upper Colorado River Basin, which stretches across five western US states but is primarily located in Colorado and Utah.

    This region has been gripped by a historic “megadrought” for more than a quarter of a century. Nearly half of the megadrought’s intensity over 2000-18 is attributable to climate change, according to a 2020 study.

    At the same time, the increasing population in the US south-west has put added pressure on the Colorado River’s water supply. The number of people obtaining some or all of their water from the Colorado system has grown by 15 million (around 60%) since 1992.

    Schmidt tells Carbon Brief:

    “There’s an ultimate cause of the present water crisis, and there’s a proximate cause. The ultimate cause is a warming climate, a warming planet and a pretty clear correlation between warming conditions and decreased runoff in the Colorado River Basin.

    “The proximate cause is that in this messy democratic republic of ours, big policy decisions that match the variability of the climate occur painfully slowly – with intense political negotiations – and only incrementally.”

    On 31 July, the US Bureau of Reclamation, which manages water resources in the western US, released an environmental impact statement on its proposed post-2026 strategy for managing Lakes Powell and Mead. The strategy itself has not been released yet.

    Schmidt notes that the statement does appear to give the Bureau flexibility to “respond to crisis” by reducing the delivery of water to several states. However, he adds:

    “They acknowledge it won’t work if we just stay critically dry, and of course every climate model for the 21st century, especially with a continually warming planet, says that that’s exactly what’s going to happen.”

    The post Analysis: The two largest reservoirs in the US have hit record-low levels appeared first on Carbon Brief.

    Analysis: The two largest reservoirs in the US have hit record-low levels

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