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The document identifies buildings as contributing almost one-third of global emissions and proposes three primary actions for regional governments: implementing net-zero building codes for new constructions, requiring energy efficiency upgrades for existing buildings, and establishing energy efficiency resource standards (EERS) for utilities.

The document outlines three primary actions for regional governments to mitigate the climate impact of waste: diverting organic waste from landfills, banning the open burning of municipal and agricultural waste, and implementing gas collection and energy recovery systems at landfills.

Mayors from across California are calling on the California Air Resources Board to move beyond incentives and implement regulatory measures to transition transit fleets to zero-emission buses. They argue that these vehicles are technologically viable, cost-competitive, and essential for reducing toxic air pollution and meeting the state's 2030 greenhouse gas reduction goals.

The document outlines five specific actions to decarbonize regional industry: methane containment, transitioning to clean industrial processes, implementing shared industrial flows (such as eco-industrial parks), decarbonizing ports and airports, and transitioning to clean industrial vehicles. It provides a framework for regional authorities to eliminate waste, electrify processes, and implement regulatory penalties for emissions, supported by references to policies from jurisdictions such as California, Brazil, and Hong Kong.

SEI scientists Peter Erickson and Michael Lazarus argue that limiting fossil fuel supply, specifically high-cost and high-emissions oil in California, is essential for solving the climate crisis. They contend that reducing production helps avoid stranded assets and that California's projected decrease in oil demand by 2030 allows for a production phase-down without increasing oil imports.

Climate Central analyzed temperature data from 244 U.S. cities to determine the increase in days falling within the 61-93°F range suitable for disease transmission by Aedes and Culex mosquitoes. The analysis found that 94% of these cities are experiencing an increase in these 'disease danger days' since 1970, with significant increases noted in California, the Southwest, and some northern cities. While most areas face higher risks, some locations like Phoenix may become too hot for mosquito survival. The report also highlights that warmer temperatures shorten the Extrinsic Incubation Period (EIP) of viruses, potentially increasing the number of infectious mosquitoes and expanding the range of species like Aedes albopictus.

The Trump Administration's Safe Affordable Fuel-Efficient (SAFE) Vehicles Rule loosens carbon emissions standards for passenger cars and light trucks for 2021-2026 and rolls back the Corporate Average Fuel Economy (CAFE) program. The author contends that these rules are detrimental to human health and the climate, and will likely fail to stop the global transition to a clean economy as international markets for combustion vehicles shrink and countries like Britain, France, Norway, India, and China move toward banning new gasoline and diesel vehicles by 2030 or 2040.

The document outlines a dialogue between stakeholders on the necessity of a managed decline of Canada's oil and gas sector to avoid the economic and social disruptions of an unmanaged collapse. It emphasizes that climate leadership for wealthy fossil fuel producers requires ending production expansion and implementing supply-side policies. Key discussions focus on the need for a dedicated transition fund, the reform of fossil fuel subsidies and Alberta's low royalty regimes, and the importance of participatory planning that protects workers and communities. The paper argues that a comprehensive policy portfolio—combining demand-side carbon pricing with supply-side production limits—is essential for Canada to meet its global fair share of emissions reductions.

The analysis finds that no new natural gas capacity is needed to maintain grid reliability in California through 2030. Depending on carbon caps and the use of battery storage to meet local capacity requirements (LCR), between 28 and 56 of the 89 modeled natural gas plants could be retired. While overall natural gas generation decreases, the report warns that remaining plants may cycle on and off more frequently, potentially increasing NOx emissions and harming air quality in nearby disadvantaged communities.

The Union of Concerned Scientists (UCS) analyzed the California Independent System Operator (CAISO) territory to determine the feasibility of retiring natural gas plants. The analysis finds that no new gas capacity is needed by 2030 and that nearly a quarter of existing capacity could be retired. However, the report warns that without clean grid management solutions, remaining plants may cycle on and off more frequently, potentially increasing NOx emissions despite lower overall carbon output. The study emphasizes that local capacity requirements (LCR) are a primary barrier to retiring peaker plants and suggests strategic energy storage and demand shifting as solutions.

The report analyzes food loss in fresh tomatoes, peaches, processing potatoes, and romaine lettuce across several US states. It finds that loss rates vary significantly by crop, with romaine lettuce seeing the highest losses (average 56%) and processing potatoes the lowest (average 2.6%). Key drivers of loss include strict cosmetic standards, market price fluctuations, and labor shortages. While most lost produce is tilled back into the soil or used for animal feed, the report argues that creating secondary markets and improving information flows could reduce this waste and address food insecurity.

The document examines the global landscape of high-speed rail (HSR), highlighting the extensive networks in China, Japan, and Europe compared to the limited development in the United States. It defines HSR as new lines exceeding 250 km/h (160 mph) and existing lines exceeding 200 km/h (120 mph). The text details China's rapid expansion, which is expected to reach 38,000 km by 2025, and Japan's long-standing safety record with the Shinkansen. In the U.S., only California is currently building a full HSR system, with the first phase expected by 2029. The report argues that HSR is more energy-efficient than cars and planes, offering a path to lower greenhouse gas emissions and reduced oil demand.

The document argues that the U.S. is unprepared for an accelerating wave of nuclear plant shutdowns. It highlights critical risks including deteriorating spent fuel pools, inadequate dry cask storage, and the potential for long-term environmental contamination. The briefing emphasizes the lack of state and local oversight, the insufficiency of decommissioning funds—estimated by some to be $40 billion short—and the dangers of transporting radioactive waste to consolidated interim storage (CIS) sites. It uses case studies from Zion, Illinois; Rowe, Massachusetts; and San Clemente, California, to illustrate the devastating economic impacts and public health risks associated with decommissioning failures.

California relies on natural gas for approximately one-third of its electricity, but analysis shows no new gas plants are needed to meet 2030 needs, and 28 existing plants could be retired as early as 2018 without compromising reliability.

The report identifies USD264bn in outstanding bonds from 1,436 climate-aligned US municipal 'pure-play' issuers, suggesting a significant opportunity to scale the green bond market through refinancing. While issuance grew to USD12bn in 2017, it declined in H1 2018 due to the Tax Cuts and Jobs Acts of 2017, which reduced refunding bond volume. The water sector represents the largest potential, accounting for 64% (USD170bn) of the identified climate-aligned universe, followed by transport at 30% (USD78.5bn). The report highlights that waste, energy, and land use sectors are currently underrepresented in the green bond market despite having substantial climate-aligned activity.

The document predicts that freezing federal fuel economy standards at 2020 levels would cost the U.S. economy $450 billion through 2050 and increase transportation sector greenhouse gas emissions by 11% by 2035. It notes that these costs and emissions increases would be lower if California retains its authority to set more stringent standards. The analysis indicates that while initial costs of manufacturing might decrease, these are outweighed by rising fuel expenses, with the primary beneficiaries being oil companies.

The Union of Concerned Scientists proposes a transportation-based cap-and-invest program for New York State, citing the success of the Regional Greenhouse Gas Initiative (RGGI) in the power sector. The document highlights that transportation is the largest source of emissions in New York and a major cause of health issues in New York City. It suggests that such a program could raise over $1.2 billion annually to fund electric vehicle infrastructure, public transit, and climate resilience.

The document examines the global landscape of high-speed rail (HSR), highlighting the leadership of China, Japan, and Europe in deployment. It contrasts this with the United States, where HSR is largely absent due to factors like low population density, car culture, and property rights. The text argues that HSR offers significant energy and environmental advantages over air and car travel, while noting that China's rapid expansion is driven by government funding and strategic goals for economic integration and energy independence.

The research note analyzes California's consignment auctioning mechanism, where the government auctions free allowances on behalf of companies and returns the revenue to them. This hybrid approach is proposed as a solution for China's national ETS to enable price discovery and price collars while cushioning the economic impact on energy-intensive, trade-exposed sectors and bypassing institutional barriers regarding government revenue accounts.

The report finds that building electrification is generally cost-effective for new construction and for customers switching from propane or heating oil, but often more expensive for existing natural gas customers at current prices. It argues that electrification reduces carbon emissions in most US regions, except those heavily dependent on coal, though this is expected to change as coal plants retire. The authors emphasize that demand flexibility—shifting energy use to low-cost or high-renewable periods—can further improve economics and grid integration. Key recommendations include prioritizing the electrification of oil and propane homes, stopping the expansion of natural gas infrastructure, and updating energy efficiency standards to account for total energy reduction across fuels.