Search Climate Insights Directory

The authors propose a global Pigouvian tax scheme combined with international side-payments to achieve Pareto-optimal climate policy. They argue that treating climate policy as an 'impure public good'—which provides both global climate stabilisation and local ancillary benefits (e.g., reduced air pollution)—increases the attractiveness of mitigation and provides immediate financial payback for investments. Numerical simulations show that while ancillary benefits only moderately increase the required tax rates, they expand the financial scope for international transfers. The study concludes that these immediate local benefits are critical for political support, especially for countries with high public debt, as primary climate benefits are delayed by approximately half a century.

The document analyzes the cement industry's response to carbon pricing, highlighting that while short-term impacts involve limited cost pass-through to consumers, long-term risks include the relocation of production to non-constrained regions. It argues that border adjustment measures (BAM) are more effective than free allowances at preserving carbon price signals and deterring investment leakage, particularly given the capital-intensive nature of the industry and high regional variations in production costs.

The paper examines the instrumental link between income inequality and social trust, which is considered essential for the collective action required for sustainability. Using a generalized linear mixed model (GLMM) on World Values Survey data from 20 country-year combinations, the author finds that both absolute income and income inequality significantly influence social trust. Specifically, trust rises with income but falls as income inequality (measured by the Gini coefficient) increases. The analysis suggests that neither economic growth nor redistribution alone is sufficient to significantly raise trust levels in low-trust societies; instead, a combination of stable growth and narrowing income distributions over approximately two decades is required to produce meaningful changes in social cohesion.

The research uses hedonic pricing to determine that A+ refrigerators in the Basque Autonomous Community carry a price premium of 8.9% (approximately 60 euro), which is only one-third of the potential lifetime energy savings. By combining this with a Linear Almost Ideal Demand System (LA/AIDS), the study finds that demand for high-efficiency refrigerators is significantly more price-elastic (ranging from -0.9 to -2.1) than demand for regular refrigerators (-0.25 to -0.75).

The document analyzes the transition to nodal pricing, noting that US Independent System Operators (ISOs) typically recover implementation costs within one year through efficiency gains. It details the use of Financial Transmission Rights (FTRs) and Auction Revenue Rights (ARRs) to hedge locational price risks and maintain market liquidity. The paper compares the US ISO model with European TSO structures, arguing that ISOs provide a more transparent framework for information sharing and system security, particularly as renewable energy penetration increases. It also highlights the Iberian experience in optimizing day-ahead and intraday markets to accommodate wind power forecasts.

This working paper by the Climate Policy Initiative (CPI) establishes a framework for diagnosing policy effectiveness by analyzing the link between policy, finance, and outcomes. It argues that policies impact the investment environment by altering the allocation of costs, revenues, and risks, which subsequently affects the types of investors attracted to projects. The paper details the specific requirements and risk tolerances of different investor classes—including debt, equity, mezzanine, and venture capital—and explains how these dynamics shift across the development, construction, and operation stages of a project. CPI intends to use this framework for future case studies to test hypotheses on financial structures and contractual risk allocation.

The paper analyzes the role of fairness in international climate negotiations, distinguishing between intention-driven fairness (based on current motives) and consequence-driven fairness (based on historical responsibility). Using game-theoretic models, the authors argue that increasing fairness perceptions in developing countries can shift negotiation dynamics from non-cooperative states (like the Prisoners' Dilemma) toward cooperative ones. The study evaluates how different support mechanisms—such as carbon sequestration, adaptation funds, and the Green Climate Fund—can be designed to signal kindness and compensate for historical emissions to foster global cooperation.

The Freshwater Trout Aquaculture Dialogue (FTAD) has developed a comprehensive set of draft standards to minimize the environmental and social impacts of freshwater trout farming globally. The standards are organized around six core principles: legal compliance, habitat and biodiversity conservation, water resource protection, fish health and welfare, resource efficiency, and social responsibility. Key environmental requirements include prohibitions on transgenic trout, strict limits on phosphorus discharge (6.5 kg/mt of fish), and the mandatory use of riparian buffer zones of at least 10 meters for new farms. Social standards align with ILO guidelines, prohibiting child and forced labor while requiring a basic needs wage for all employees. The document also specifies rigorous feed sourcing requirements, aiming for 100% certified marine ingredients within five years and a Fishmeal Forage Fish Dependency Ratio (FFDRm) of ≤ 1.5. Certification is site-specific and requires 100% compliance across all standards.

The report estimates that the currently proposed EU ETS Phase III structure would raise between €150-190bn under a 20% emissions reduction target, increasing to €200-310bn if the target is raised to 30%. Germany is projected to receive the highest proportion of these revenues. The authors argue that these funds should be prioritised for climate-related expenditures, such as carbon capture and storage (CCS) demonstrations, low-carbon RD&D, and energy efficiency improvements for vulnerable groups. The report also explores an alternative scenario where the cement and steel sectors are fully auctioned with border levelling; this would increase revenues by €18-22bn from cement and €14-17bn from steel under a 20% target. While some suggest using these funds for national debt reduction, the authors warn that this could damage the legitimacy of the EU ETS, though they acknowledge it as a potential short-term transitional option for severely indebted Member States.

The document estimates that Phase III of the EU ETS will generate between €150-190bn in revenues across the EU by 2020, potentially rising to €200-310bn if a 30% reduction target is adopted. Germany is projected to receive the highest proportion of these revenues, while Italy, Poland, Spain, and the UK are each expected to accrue over €10bn from the power sector alone. The briefing also explores the financial impact of expanding auctioning to the cement and steel sectors and suggests strategic uses for these funds, including carbon capture and storage (CCS) demonstration, renewable energy RD&D, grid infrastructure, and international climate finance.

The document outlines China's shift toward energy efficiency and non-fossil fuel development, driven by energy security, environmental protection, and economic restructuring. It details the targets of the 12th Five-Year Plan (2011-2015), including carbon and energy intensity reductions. The author highlights China's rapid expansion in wind, solar, and high-speed rail, while noting the strategic importance of carbon capture and storage. Finally, it argues that China's clear policy framework creates significant investment opportunities for U.S. companies in clean technology.

The study finds that A+ labeled refrigerators in the Basque Autonomous Community carry a price premium of 8.9% (approximately 60 euro) over A labeled models. This market premium is only one third of the potential lifetime energy savings (163 euro), illustrating the 'energy efficiency paradox'. The authors conclude that demand for the most energy-efficient refrigerators is highly sensitive to price changes, suggesting that subsidies of around 60 euro could be sufficient to encourage consumers to switch to high-efficiency models.

The document evaluates different strategies for distributing emission reduction burdens between ETS and non-ETS sectors in Spain, alongside the impact of replacing a CO2 tax with taxes on energy, oil, or electricity. It concludes that a cost-effective distribution—where energy-intensive sectors bear a larger share of the effort—minimizes overall mitigation costs, while taxing electricity is found to be highly inefficient for reducing CO2 emissions.

The document argues that the IFC's draft Sustainability Framework fails to adequately protect human rights, noting that references to human rights were removed from previous drafts. The signatories call for mandatory human rights due diligence for both the IFC and its clients, alignment with the UN 'Protect, Respect and Remedy' framework, and specific safeguards regarding water rights, gender impacts, forced evictions, and environmental damage.

The report finds that the EU's current regional/zonal pricing model impedes the integration of the 200 GW of new renewable energy needed by 2020 by limiting cross-border flows and failing to provide transparent investment signals. Through quantitative simulations, the authors demonstrate that a nodal pricing system would increase international power transfers by up to 34% and generate annual system variable cost savings between €0.8 billion and €2.0 billion, depending on wind power penetration.

The report argues that the GM crop industry is built on unsubstantiated claims and that the technology primarily benefits biotech corporations rather than farmers or consumers. It documents rising public and legal opposition in Europe, the US, and Asia, while highlighting the environmental and health risks associated with herbicide-tolerant crops and the emergence of 'superweeds'. The document also examines the push for GM animals and the influence of the US government and the Gates Foundation in promoting GMOs in Africa and Latin America, often at the expense of local food sovereignty.

The report argues that the GM crop industry exaggerates benefits and suppresses evidence of harm. It documents a global trend of public and legal rejection, including the reduction of GM acreage in Europe and court rulings against Monsanto in the US. The text highlights the increased use of agrotóxicos, specifically glyphosate, and the risks of new GM animals like salmon and pigs. It further criticizes the influence of the US government and the Bill & Melinda Gates Foundation in promoting GM technologies in Africa and Latin America, which the authors claim threatens traditional agricultural practices and food sovereignty.

The Cancun Climate Summit is characterized as a moderate success that restored faith in the multilateral process following the Copenhagen summit. Key outcomes included the first official UN agreement to keep global temperature increases below 2°C, the recognition of voluntary emission reduction plans for 2020, and the establishment of financial mechanisms for developing countries, including a 30 billion dollar transfer for 2010-2012 and the creation of the Green Climate Fund. While the summit made progress on measurement, reporting, and verification (MRV) and forest protection (REDD+), it left the decision on a second Kyoto Protocol period to the 2011 Durban summit. The authors attribute the success to the leadership of the Mexican government and the UNFCCC Executive Secretary.

The policy brief examines conflicts in the classification of ecosystem services (ES) for economic valuation, specifically critiquing the Millennium Ecosystem Assessment (MA) framework. By analyzing 25 valuation studies of water services in Central American tropical forests published between 1985 and 2009, the authors demonstrate that the MA framework can lead to double counting and the underestimation of service values. They propose that valuation should focus on the final outcomes (outputs) that impact human welfare rather than ecological processes. This distinction is presented as critical for accurate natural capital measurement in national accounting systems like the System of Integrated Environmental and Economic Accounting (SEEA).

The document analyzes the transition from traditional energy to fossil fuels in the UK between 1500 and 1920 to derive lessons for the current shift toward a low carbon economy. It finds that past transitions were driven by the ability to provide cheaper or better energy services, often starting in niche markets where consumers paid a premium for superior characteristics. The author argues that because consumers are unlikely to pay a premium for the social benefits of climate stability, governments must actively protect and manage the innovation chain for low-carbon technologies. Given that past sector-specific diffusion phases took nearly fifty years on average, the author concludes that a complete transition to a low carbon economy will be slow, likely spanning decades, and may not reduce fossil fuel consumption for a long time.