Search Climate Insights Directory

The policy brief asserts that global climate success depends on the 20 largest emitting nations adopting a small set of high-impact policies across four sectors: electricity, buildings, industry, and transportation. It emphasizes that policy design is critical to avoid inefficiencies and suggests the use of 'Best Practice Networks' (BPNs) to provide technical expertise to governments to ensure these policies are effectively implemented.

The document advocates for outcome-oriented energy efficiency metrics, such as kWh per customer, as a more transparent and less administratively burdensome alternative to measure-by-measure savings calculations. It details several potential metrics, discusses the necessity of adjustment mechanisms for exogenous factors like weather and GDP, and provides recommendations for regulators to minimize regulatory conflict by using independently verified data.

The document examines the failures of California's Risk-Reward Incentive Mechanism (RRIM), where disagreements over counterfactual assumptions for energy savings led to massive swings in utility penalties and bonuses. It argues that measure-by-measure estimation is administratively burdensome and contentious, recommending a shift toward outcome-oriented metrics or the use of approved ex ante values to reduce regulatory conflict.

The paper argues that traditional cost-of-service regulation incentivizes utilities to invest in capital expenditures to meet peak demand. To counter this, it proposes a PIM based on an outcome-oriented metric—specifically the percentage reduction in peak load—rather than a measure-by-measure counterfactual approach, which it claims failed in California's Risk Reward Incentive Mechanism (RRIM). The author recommends setting long-term targets (five to eight years) with annual interim goals and utilizing a sloped, symmetrical incentive structure with upper and lower caps. To manage risk, the proposal suggests a gradual implementation starting with small revenue amounts, eventually scaling the PIM based on independent studies of the net societal benefits of peak reduction.

The document examines the $6.8 billion merger between Exelon and Pepco, focusing on the contentious approval process in Washington, D.C. It uses this case to highlight five industry trends: increased utility consolidation to hedge against low wholesale power prices, disputes over microgrid ownership, the criticality of rate design equity, the rise of empowered local customer constituencies, and the proliferation of state-level power sector transformation proceedings.

CIEL President Carroll Muffett supports the collaboration of US state Attorneys General in investigating fossil fuel companies for climate deception, noting that five jurisdictions—New York, California, Maryland, Massachusetts, and the US Virgin Islands—have confirmed investigations into Exxon.

California is experiencing significant damages from climate change, including increased heat-related mortality, more frequent and severe wildfires, and rising sea levels. The state faces critical water shortages, record-low snowpacks in the Sierra Nevada, and a high risk of extinction for 83 percent of its native freshwater fish species.

The document highlights that energy efficiency upgrades, particularly attic insulation, can provide a high return on investment in terms of home resale value. It references the Remodeling magazine Cost vs. Value Report to show that attic insulation was the only project with a greater-than-100-percent cost vs. value ratio nationally, yielding a 166 percent return. Beyond resale value, the briefing identifies operational cost savings, improved thermal comfort, and health benefits—such as an 85 percent drop in hospital admissions for children with asthma following comprehensive retrofits—as key drivers for homeowners. Other value-adding upgrades mentioned include solar PV systems, high-efficiency HVAC systems, envelope improvements, and advanced water heating technologies.

The report finds that global geothermal operating capacity reached 13.3 GW across 24 countries by January 2016, with a forecast to reach 18.4 GW by 2021. While international growth is supported by COP21 commitments and the Global Geothermal Alliance's goal of 65 GW by 2030, the U.S. market has nearly stalled at 3.7 GW of nameplate capacity due to cheap natural gas and unbalanced tax incentives. The report highlights that only 6-7% of global geothermal potential has been tapped and emphasizes the need for increased public financing to drive private investment in developing nations.

The Obama Administration set a goal to reduce methane emissions from the oil and gas sector by 40-45% from 2012 levels by 2025. While the EPA proposed standards for new and modified sources, it has failed to address existing sources, which a 2014 ICF International study predicts will represent 90% of the sector's total methane emissions in 2018. Analysis by CATF and the Rhodium Group indicates that voluntary industry programs are insufficient to bridge the 'methane emissions gap', as even 100% participation would leave a gap of 54 million metric tons of CO2e. The author asserts that nationwide standards on existing oil and gas equipment would reduce emissions by 77 million metric tons of CO2e, sufficient to meet the Administration's goal.

The document highlights a growing problem where U.S. transportation fuels are becoming 'dirtier' as oil companies shift toward unconventional sources like tar sands and use high-emission extraction methods such as fracking. It argues that while vehicle efficiency has improved by 20 percent, these gains are undermined by the increasing emissions associated with extracting and refining oil, which can vary from less than 50 to 250 kilograms of CO2e per barrel. To counter this, the report advocates for eliminating wasteful practices like flaring, requiring better emissions disclosure, and shifting toward advanced biofuels made from wastes and perennial grasses. It also emphasizes the role of electric vehicles, noting that their climate benefit depends on the grid; for example, charging an EV in California produces only 35 percent of the emissions of a conventional vehicle.

The Union of Concerned Scientists proposes a "Clean Path" for Virginia to comply with the Clean Power Plan by transitioning from voluntary to mandatory renewable energy and energy efficiency targets and implementing a mass-based carbon emissions-trading program. The analysis suggests this approach would reduce CO2 emissions by 77 million tons through 2030 compared to a reference case, lower typical residential electricity bills by 5% by 2030, and generate an average of $241 million in annual auction revenue for state investments. The report highlights Virginia's current underutilization of its renewable potential, noting that non-hydro renewables accounted for only 2.8% of electricity generation in 2014.

The Union of Concerned Scientists (UCS) submitted a public statement to the EPA supporting the Clean Power Plan (CPP) while advocating for a mass-based emissions trading approach for states subject to a federal implementation plan. UCS argues that a mass-based system provides greater certainty for achieving emissions budgets and better integration with future carbon markets. The document provides detailed recommendations for both rate-based and mass-based models, including the expansion of eligible zero-emission resources to include distributed generation and energy efficiency. It also proposes modifications to the Clean Energy Incentive Program (CEIP) to broaden project eligibility timelines and ensure benefits reach low-income communities. Additionally, UCS emphasizes the need to protect voluntary renewable energy markets and suggests implementing interim compliance provisions to prevent emissions deficits.

The document outlines strategies for US states to ensure that the Clean Power Plan does not disproportionately burden low-income communities and communities of color. It emphasizes the need for 'high impact' engagement, the conduct of formal Environmental Justice (EJ) analyses, and the avoidance of carbon trading mechanisms that may allow power plants to avoid on-site pollution reductions. The guide also advocates for a 'Just Transition' that provides economic development and job training in communities heavily dependent on fossil fuels.

The report analyzes pathways for California, Oregon, and Washington to reduce transportation petroleum use by 50% by 2030. It identifies a 'Half the Oil' (HtO) Pathway that distributes reductions across travel demand management, vehicle efficiency, and alternative fuel deployment. While existing policies are projected to reduce consumption by 24% in California and 8% in Oregon and Washington by 2030, achieving the 50% target requires extending and accelerating these measures. The analysis finds that relying on a single category of strategy is insufficient to meet the target, and that Washington faces greater challenges due to a lack of enforceable alternative fuel and zero-emission vehicle policies.

The document outlines a pathway for California to halve its oil use by 2030 by extending and enhancing existing policies on vehicle efficiency, electrification, and land use planning.

The document provides a technical appendix describing the life cycle emissions modeling for urban buses in California, comparing diesel, compressed natural gas (CNG), hydrogen fuel cell, and battery electric options. It details modifications to the CA-GREET 2.0 and Vision 2.0 models to better reflect California-specific fuel pathways and electricity grid mixes. Key findings include the significant reduction of global warming emissions when using 100% renewable energy for electric buses and the role of biomass and coal in the grid's particulate matter emissions. The analysis also examines the impact of low-carbon biofuels and low-NOx engines on overall emissions profiles.

The report examines 13 watershed investment programs in the U.S., focusing on how natural infrastructure—specifically forests—can be used to protect drinking water quality and quantity. It provides a framework for program development across three phases: building momentum, designing the program, and implementing the action plan. Key findings emphasize the importance of collaborative partnerships, scientifically informed planning, and diverse financing mechanisms, such as municipal bonds and water rate surcharges, to overcome barriers like insufficient funding and lack of outcome data.

The document analyzes how carbon taxes or cap-and-trade programs affect U.S. households through expenditures, income, and revenue allocation. While carbon pricing can be regressive in terms of energy expenditures—disproportionately affecting low-income households and coal-dependent regions—the authors argue that the overall impact is determined by how the government uses the revenue. By targeting a small portion of revenue (approximately 10-12%) toward low-income households and coal communities, policymakers can offset burdens and ensure these vulnerable groups are not driven deeper into poverty. The brief compares various revenue uses, such as lump-sum rebates, labor tax swaps, and capital tax swaps, concluding that the policy is not inherently regressive and can be designed to be progressive.

The AgWater Challenge, launched in October 2016 by WWF and Ceres, engages food and beverage companies in reducing water risks in their supply chains. The inaugural cohort of seven companies committed to measurable goals across five stewardship 'ingredients': risk assessment, sustainable policies, time-bound goals, watershed collaboration, and farmer support. While companies showed progress in risk assessment and policy setting, supporting growers remains a significant challenge. Key participants like PepsiCo, Diageo, and Kellogg have implemented specific targets for water efficiency and sustainable sourcing, emphasizing the need for senior management buy-in and holistic risk management.