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The paper evaluates the Spanish "Renove" plan, which provides rebates for A+ labelled energy-efficient appliances. Using a model of close substitutes, the authors find that a standalone 80€ subsidy for dishwashers in the Basque Autonomous Community increases total market demand by 1.5%, leading to a "rebound effect" that increases the total energy bill by 197,399€ and costs the government over 1 M€. In contrast, a 40€ tax on non-efficient appliances reduces total appliance demand by 1.6%, generates approximately 0.8 M€ in revenue, and saves nearly 300,000€ in energy costs. The authors argue that combining taxes and subsidies can optimize outcomes; for example, a 40€ subsidy paired with a 20€ tax avoids a deficit, prevents the rebound effect, and reduces deadweight loss compared to single-instrument policies.

The research introduces a modelling framework combining the NGAUGE field-scale model and a new LANDDAIRY farm-scale submodel to quantify greenhouse gas (GHG) emissions from Basque dairy farms. A case study of 17 farms in Bizkaia found mean total GHG emissions of 385 ± 175 t CO2-eq yr-1, with emissions per litre of energy-corrected milk ranging from 0.86 to 2.11 kg CO2-eq. The study identifies methane from enteric fermentation and emissions from purchased feed as the primary contributors to the carbon footprint, suggesting that purchased feed can serve as a proxy for estimating total farm emissions.

The document investigates the shift from top-down technocratic approaches to inclusive environmental governance within the Natura 2000 network. It proposes a three-pronged evaluation framework focusing on information quality, legitimacy, and social dynamics. Applying this to the Garate-Santa Barbara SCI in the Basque Country, the authors find that while participatory processes can reduce uncertainty and foster local relationships, they often fail to influence final political decisions, leading to participant frustration.

The paper argues that traditional top-down, uni-dimensional management of protected areas fails to capture the complexity of social-ecological systems. To address this, the authors develop a participatory integrated assessment approach that combines social multi-criteria evaluation (SMCE) with economic valuation via choice experiments and ecological valuation via bio-geographic assessment. Applying this to the Garate-Santa Barbara Natura 2000 site in the Basque Country, the study identifies a conflict between the conservation of cork oak forests and the expansion of txakoli vineyards. The results indicate that a management option increasing cork oak woodland combined with additional compensation schemes (Alternative A32) is the most globally valued and socially acceptable solution. The authors conclude that such an interdisciplinary, inclusive approach fosters social learning and creates the social capital necessary for sustainable land-use transitions.

The paper argues that explicitly weighting criteria in participatory multi-criteria evaluations allows for a 'social sensitivity' analysis that validates the robustness of sustainability assessments without forcing a consensus among stakeholders. Using a case study of the Urdaibai Estuary in the Basque Country, the authors applied a process of individual weighting followed by hierarchical cluster analysis to group social actors by their priorities. The results showed that while most groups favored conservation and limited dredging, the shipyard labor union held opposing priorities. The authors conclude that this approach facilitates social learning and mutual understanding by mapping the diversity of priorities rather than oversimplifying them into a single average value.

The authors introduce the 'equivalency principle' to resolve uncertainties in setting social discount rates for natural assets. This rule posits that the present value of a naturally preserved land track should be at least equal to the market price of an identical track with permission for residential development. By applying this principle to various case studies and a specific proposed seaport in Pasaia, Gipuzkoa, the paper demonstrates that traditional cost-benefit analyses using high market discount rates often bias results in favor of development, whereas the equivalency principle typically yields much lower discount rates that favor environmental conservation.

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 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 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 investigates the economic impact of energy efficiency labels on the dishwasher market in Spain, specifically within the Basque Autonomous Community. Using a hedonic approach, the authors find that an A+ energy label increases the final price of a dishwasher by 15.6%, which equates to approximately €80 based on an average price of €514. This finding is compared to a government subsidy programme that provides between €50 and €85 to encourage the purchase of high-efficiency appliances. The study also employs the Quantity Based Demand System (QBDS) and the Linear Almost Ideal Demand System (LA/AIDS) to determine price elasticities, concluding that demand for labelled appliances is significantly more elastic than for non-labelled ones. Specifically, while own price elasticity for non-labelled dishwashers ranges from -0.5 to -2, it varies from -1.2 to -13.2 for labelled appliances. The authors suggest the QBDS model is a robust, less data-demanding alternative for analyzing close substitutes in energy efficiency policy.

The document argues that national-level analyses of carbon leakage underestimate the severe economic risks to Old Industrial Regions (OIRs), where heavy industry is highly concentrated. Using an applied general equilibrium (AGE) model for the Basque Country, the authors find that relocating 1.5% to 35% of iron and steel production could lead to a GDP drop of up to 2.26%. While such relocation reduces CO2 emissions, the implicit cost of this mitigation (187 to 202 €/Tco2) is significantly higher than technological alternatives like carbon capture and storage. The authors recommend that climate policies be carefully designed to avoid imposing undue burdens on sectors prone to relocation in OIRs.

The study finds that energy efficiency labels (specifically class A+) add a price premium of 15.6% to dishwashers in the Spanish market, amounting to approximately €80 based on an average price of €514. Using a Quantity Based Demand System (QBDS), the authors determine that demand for labelled appliances is significantly more elastic than for non-labelled ones, with own-price elasticity for labelled goods ranging from -1.2 to -13.2. The research suggests that while Spanish subsidy programmes (paying €50 to €90) may have slightly overestimated the necessary premium, they have been highly successful, as nearly all dishwashers currently sold in the market are labelled A or A+.

The document analyzes the risk of carbon leakage in the Basque economy, defining vulnerability as a combination of high carbon costs and high trade intensity with non-EU countries. Using 2005 data, it finds that 11 sectors are at risk, representing 4-6% of productive activity and 6.5% of the total Gross Value Added (GVA). Key vulnerable sectors include oil refining and steel, while the majority of the economy (77.4% of GVA) remains unaffected. The author recommends protecting vulnerable sectors while transitioning toward a value-based rather than volume-based production model.

The research investigates how asymmetric global climate policies can lead to carbon leakage, specifically the relocation of CO2-intensive industries like iron and steel. Using the Basque Country as a representative Old Industrial Region (OIR), the authors demonstrate that while relocation impacts may be negligible at a national level, they can significantly reduce regional GDP. The study finds that reducing emissions through industrial relocation is far more costly in terms of GDP loss than achieving the same reductions through cost-effective mitigation policies.

The Resources and Energy Analysis Programme (REAP) is a software tool developed by the Stockholm Environment Institute (SEI) that uses an environmentally extended input-output model to track greenhouse gas emissions, air pollutants, and ecological footprints based on consumption rather than just production. By distinguishing between domestic and imported goods across 178 sectors, REAP allows users to create quantifiable scenarios based on the IPAT formula (Population, Affluence, and Technology) to test policy interventions. The tool has been applied to various UK sectors, including the NHS and tourism, and used in regional planning, such as housing scenarios in the Tees Valley. SEI is expanding the tool's application to EU-27 members, Sweden, and the Basque Country.

The document examines climate change as a global challenge characterized by scientific uncertainty and long-term impacts. It frames the issue as a 'market failure' resulting from negative externalities, where the costs of greenhouse gas emissions are not internalized. The authors discuss the economic costs of mitigation versus inaction, the ethical implications of discount rates and inter-generational equity, and the potential for 'carbon leakage' in international trade. It emphasizes the necessity of combining mitigation and adaptation strategies, the critical role of R&D and technology transfer to developing nations, and the importance of international agreements like the Kyoto Protocol and the 2009 Copenhagen Summit (CoP 15).

The document examines the critical role of regional governments in implementing climate change mitigation and adaptation policies, noting that while national governments negotiate international targets, regions often hold the actual competencies for execution. It analyzes 23 regions, highlighting a variety of instruments such as carbon taxes, subsidies, and cap-and-trade systems. A detailed case study of the Basque Country's 'Basque Plan to Combat Climate Change 2008-2012' illustrates how a small, industrialised region can set specific targets for GHG emissions and carbon sinks while coordinating across multiple policy sectors.

The Basque Centre for Climate Change (BC3) activity report for 2009-2012 details the centre's growth to a team of 31 researchers focused on the socio-economic aspects of climate change. The report outlines four primary research lines: adaptation and impacts, mitigation measures, international climate policy, and climate policy specifically for the Basque Country. Key achievements include the production of 226 articles and 18 books, the development of the ARIES modelling technology for ecosystem services, and the creation of the REMEDIA scientific network for agroforestry GHG mitigation in Spain. The centre also emphasizes knowledge transfer through policy briefings, the Klimagune workshops, and the 'Training Caravan' educational initiative for students in the Basque Country.

The document presents a portfolio of BC3's urban research, focusing on the socio-economic and ecological implications of climate change. Key studies include an analysis of Bilbao's Sustainable Energy Action Plan, flood-risk assessments in Bilbao, Zurich, and Zaragoza, and the evaluation of heat-health warning systems and green roofs in Madrid.

The STARRS pilot project, initiated by Climate Group and Climate TRACE, demonstrates how satellite imagery and artificial intelligence can provide timely, granular greenhouse gas (GHG) emissions data for subnational governments. By tracking six pilot regions—Abruzzo (Italy), Basque Country (Spain), Jalisco (Mexico), Querétaro (Mexico), Pernambuco (Brazil), and Western Cape (South Africa)—the project addressed common barriers to emissions accounting, such as high costs and long timeframes associated with traditional bottom-up methods. The project provided historical data from 2015 to 2021 across sectors including electricity, heavy industry, and road transport, while also mapping biomass changes. Findings for the pilot regions highlighted specific emission drivers, such as the dominance of the Bilbao Refinery in the Basque Country's oil and gas sector and the significant impact of feedlots in Jalisco and Western Cape.