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The study measured nitrogen (N) and phosphorus (P) levels in aerosols and rainwater in Singapore's Marina catchment area. It found that wet deposition dominated N fluxes, while dry deposition dominated P fluxes, with both showing seasonal variations. The results suggest that atmospheric nutrient concentrations are influenced by both local emissions and transboundary transport, and the N:P ratio of 10.5 indicates a potential tendency toward N-limitation in local aquatic ecosystems.

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 report estimates that the federal and provincial governments of Alberta, Saskatchewan, and Newfoundland and Labrador provide over $2.8 billion in annual subsidies to the upstream oil sector. Using a definition based on the WTO's Agreement on Subsidies and Countervailing Measures, the study identifies 63 subsidy programs, with development subsidies (reducing capital expenditures) comprising 59% of the total value. Alberta receives the largest share of support (73% of total subsidies), which exceeds its share of crude oil production (67%). Macroeconomic modelling suggests that these subsidies increase national oil production by approximately 5% and GHG emissions by 2% by 2020, while negatively impacting government balances in the federal government, Alberta, and Saskatchewan.

The research argues that within-country income inequality is driven more by socio-political institutions and state ideology than by economic development or market forces. By integrating Chakravorty's qualitative model of state regimes (extractive, redistributive, and reinvestment) with the quantitative Selectorate theory, the author develops a model where the size of the 'winning coalition' and the bias toward redistribution versus reinvestment serve as primary predictors of the Gini coefficient. Empirical testing using data from 1970-1990 shows that the size of the winning coalition is a strongly significant predictor of inequality, while GDP per capita is not. The paper applies this model to 104 countries across three stylized 50-year global convergence scenarios, finding that redistributive regimes yield the lowest inequality and extractive regimes the highest.

The research finds that large youth cohorts significantly increase the risk of political violence primarily in societies with low male secondary education levels. This effect is most pronounced in low and middle-income countries, particularly in Sub-Saharan Africa. The study supports the 'opportunity cost' hypothesis, suggesting that higher education reduces the incentive for young men to join rebel organizations. Conversely, it finds no evidence that rapid educational expansion or low progression ratios between education levels increase conflict risk.

The research identifies a "teachable moment" of increased information-seeking activity regarding global warming that lasted from 10 days before to 19 days after the release of the film The Day After Tomorrow. Using Auto Regressive Integrated Moving Average modeling, the study found a significant positive correlation between media coverage of the movie and public information-seeking activity, though the data did not support hypothesized time lags.

The report assesses the potential for reducing greenhouse gas (GHG) emissions, NOx, and fuel consumption in California's heavy-duty truck fleet through retrofit technologies. It evaluates six technology packages across different vehicle types and duty cycles, concluding that a combination of high-technology retrofits for new vehicles and moderate-technology retrofits for in-use vehicles is the most cost-effective strategy. The analysis suggests that focusing on tractor-trailers and straight trucks over 14,000 pounds could reduce state heavy-duty fleet GHG emissions by 14.9 to 22.2 million metric tons of CO2-equivalent between 2010 and 2020.

The report assesses how the ASEAN-China Free Trade Agreement (ACFTA) has influenced trade flows and environmental quality in the Greater Mekong Sub-region (GMS). Using a trade-environment matrix, the authors find that while two-thirds of trade is in low-pollution sectors, a third is in highly polluting sectors, with China as the primary producer of these goods. In Cambodia, the agreement has increased imports of polluting goods from China, which the authors describe as an environmental 'gain' for Cambodia at the expense of China's environment. However, the report highlights severe risks of natural resource depletion in Cambodia, specifically deforestation driven by wood and rubber exports, and overfishing. The authors conclude that the ACFTA lacks environmental provisions, which is a significant shortcoming in regional economic policy.

The paper argues that the variability of renewable energy can be managed through optimized geographic dispersion and the cross-firming of wind and solar resources. By analyzing data from the MRO, SPP, and ERCOT regions, the study demonstrates that expanding the geographic scope of a renewable portfolio significantly reduces system variability and the frequency of zero-power production. It also finds that combining solar and wind resources further lowers variability compared to wind-only portfolios. The authors conclude that these strategies, combined with demand response, energy storage (such as xEVs), and smart grid communications, can reduce the reliance on conventional baseload power.

The report evaluates the human health impacts of reducing sulphur in marine fuels, comparing a 'no action' scenario with two control options: a 0.1% sulphur limit within 200 nautical miles of coastlines and a global 0.5% sulphur limit. It estimates that these controls could reduce global premature mortality from international shipping by 50-60% by 2012, saving between 41,500 and 50,000 lives annually. Using US EPA cost methodology, the Friends of the Earth International (FOEI) values these societal benefits at approximately $225 to $275 billion per year.

This research paper investigates the impact of democracy measurement on the 'democratic peace' proposition, which posits that democracies rarely go to war with one another. The author compares the widely used Polity dataset with Vanhanen's Polyarchy dataset, which uses a simpler index based on electoral competition and participation. Through bivariate and multivariate analyses of conflict data from 1816 to 2002, the study finds that the choice of indicator does matter; specifically, electoral competition appears to be a stronger predictor of peace than the aggregated democracy scores. The author concludes that while different measures often correlate, they are not interchangeable and can lead to different inferences about the causes of international peace.

The report develops a pilot Index of Sustainable Economic Welfare (ISEW) for Sweden (1950-1992), finding that while per capita ISEW grew by over 90%, it lagged behind the more than 100% growth of per capita GNP. The index began to diverge from GNP around 1980, eventually declining by 1992. This divergence was less severe than in the US or UK, which the authors attribute to Sweden's progressive income distribution policies and its reliance on hydropower, which reduced the negative impacts of resource depletion and long-term environmental damage in the index calculations.

The analysis finds that meeting 1.5°C targets in the EU will require massive quantities of steel, concrete, and glass, with cumulative emissions from material production reaching approximately 1.5 Gt CO2 by 2050. The authors argue that without decarbonising the upstream manufacturing of these materials via carbon capture and low-carbon hydrogen, the climate benefits of renewable energy deployment will be significantly constrained.

The document provides data on collective political efficacy—defined as being 'extremely,' 'very,' or 'moderately confident' that people working together can affect federal government action on global warming. Findings show that confidence varies significantly by political affiliation, race, age, and the frequency of social discourse on the topic. Between Fall 2018 and Fall 2023, confidence among Democrats rose from 46% to 57%, while confidence among Republicans decreased from 28% to 23%. In the most recent data, Hispanic/Latino (63%) and Black (Non-Hispanic/Latino) (57%) groups reported the highest levels of confidence, while Republicans (23%) reported the lowest. Additionally, individuals who hear others talk about global warming 'once a month' or more often exhibit higher confidence levels across the general population, Republicans, and Democrats compared to those who hear it less frequently.

The data tables show that a minority of the U.S. population perceives allergy seasons as becoming more severe, while a majority believes they have stayed about the same. Among the 'Six Americas' climate-attitude groups, the 'Alarmed' group reports the highest percentage of increased severity.

The document presents statistical breakdowns of climate change perceptions across various demographic groups. It highlights that 'Alarmed' and 'Concerned' levels vary by generation, race, and gender, with the highest percentage of 'Alarmed' individuals found among Gen Z/Millennial Women of Color (39%). Conversely, the highest levels of 'Doubtful' and 'Dismissive' views are concentrated among older White Men.

The document presents data on the likelihood of different groups to discuss global warming. Liberal Democrats (68%) and those in the 'Alarmed' psychographic group (83%) are the most likely to discuss the topic, while Conservative Republicans (11%) and the 'Doubtful' group (3%) are the least likely. Discussion is also strongly correlated with perceived social norms and the frequency of hearing about global warming from others.

The document provides data tables tracking U.S. public worry about extreme heat and other environmental threats from March 2018 to April 2023. It shows a general increase in the percentage of people who are 'very' or 'moderately' worried about extreme heat, peaking at 49% in December 2022.

The study finds that while population density is a strong and consistent predictor of armed conflict, the effects of land degradation and water scarcity are relatively weak or insignificant. Political and economic factors, particularly GDP and political instability, far outweigh local environmental stressors in determining conflict risk. Interestingly, the authors find that resource scarcity may matter less for conflict in low-income states than in wealthier states, challenging some neo-Malthusian assumptions.