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The City of Houston, Harris County Attorney, and Air Alliance Houston argue that the district court abused its discretion by denying civil penalties and injunctive relief despite finding nearly one hundred actionable Clean Air Act violations at Exxon's Baytown complex. The brief contends that the court misapplied the 'seriousness' and 'economic benefit' factors of the Act, ignoring the public health risks of ozone and carcinogens in the Houston-Galveston-Brazoria Ozone Nonattainment Area. It further argues that the court's narrow interpretation of 'repeated' violations allows polluters to evade liability by frequently changing numeric emission limits.

The briefing emphasizes the link between public transportation and the success of knowledge-based industries, using Austin as a primary example of a fast-growing city facing severe congestion. It advocates for a multi-year federal authorization bill to fund the Highway Trust Fund and the creation of an integrated intercity passenger rail network to maintain national competitiveness and quality of life.

A coalition of 290 organizations and individuals opposes H.R. 1734, asserting that the bill would weaken the U.S. Environmental Protection Agency's (EPA) 2014 coal ash rule. The signatories argue the legislation would delay health protections, eliminate public access to information, and remove national standards for drinking water protection, thereby increasing risks to vulnerable communities and the environment.

The document evaluates technical and commercial viability for several associated gas utilization technologies in US tight oil fields. It identifies gas gathering, CNG trucking, NGL recovery, gas-to-power, and Mini-GTL MT as technologies that pass initial screening, while gas reinjection, Mini-LNG, Mini-GTL FT, and ammonia production are rejected due to scale, maturity, or economic constraints. The report provides detailed technical specifications, cost models, and case studies for these options, specifically focusing on the Bakken region of North Dakota.

Tight oil, also known as shale oil, is extracted from impermeable rock using hydraulic fracturing, a process that is more energy-intensive and polluting than conventional drilling. In the United States, tight oil's share of domestic production rose from 23 percent in 2011 to 45 percent in 2013. Key environmental concerns include flaring of associated natural gas, fugitive methane emissions, and pollution of water, air, and noise. The document argues that transitioning to cleaner transportation technologies and improving extraction infrastructure can reduce the reliance on and emissions from tight oil.

Investors and the Union of Concerned Scientists (UCS) have formally requested that Chevron Corporation improve its public disclosures regarding the physical risks climate change poses to its coastal refineries. The authors argue that Chevron's SEC Form 10-K filings fail to address material risks such as sea level rise and enhanced storm surges, despite the vulnerability of specific sites like the Pascagoula, Mississippi and Kapolei, Hawaii refineries. They highlight that the 2005 damage to the Pascagoula refinery from Hurricane Katrina demonstrates the potential for material impacts on production and cash flows.

A letter from investors and the Union of Concerned Scientists to Exxon Mobil requesting disclosure of physical climate risks to coastal refineries, citing SEC guidance and the vulnerability of specific Texas and Louisiana facilities to sea level rise and storm surges.

Investors and the Union of Concerned Scientists (UCS) are calling on Marathon Petroleum to improve its public disclosures regarding the physical risks of climate change. They argue that the company's SEC Form 10-K filings fail to address the vulnerability of coastal refineries to sea level rise and storm surges, despite evidence of past disruptions and scientific projections for the Gulf of Mexico.

A letter from investors and the Union of Concerned Scientists (UCS) to Valero Energy Corporation requesting the disclosure of physical climate risks at its coastal refineries. The authors argue that Valero has failed to report material risks related to sea level rise and storm surge in its SEC Form 10-K filings, despite the vulnerability of facilities in Texas and Louisiana and previous disclosures made by the former owner of the Meraux refinery.

The document outlines the technical approach used by the Union of Concerned Scientists to analyze climate risks at specific refineries owned by Valero, Phillips 66, Exxon Mobil, Marathon Petroleum, and Chevron. It details the data sources for refinery capacity and boundaries, the sea level rise projections based on the IPCC's RCP 4.5 scenario, and the use of the National Weather Service's SLOSH model to simulate storm surge from Category 1–5 hurricanes. Additionally, it explains the criteria used to score company disclosures of physical climate risks based on SEC filings and Ceres methodology.

The report examines the vulnerability of U.S. coastal oil refineries to sea level rise and storm surge, focusing on five major companies: Valero, Phillips 66, Exxon Mobil, Marathon Petroleum, and Chevron. It argues that these companies fail to adequately disclose material physical climate risks to the SEC, despite guidance issued in 2010. The analysis uses SLOSH MOM modeling to demonstrate that current and future sea level rise increases the likelihood of facility inundation and operational disruptions. The report highlights the resulting financial risks for investors and the environmental and health risks for neighboring communities, particularly those in the Gulf Coast region.

The report evaluates the vulnerability of North American monarch butterflies (Danaus plexippus) to climate change, identifying high sensitivity to temperature and a critical dependence on milkweed. While the species possesses high adaptive capacity due to dispersal ability and reproductive rates, it faces significant threats from habitat loss, pesticide use, and extreme weather. Recommended strategies focus on restoring milkweed and nectar sources, protecting overwintering forests in Mexico and California, and increasing population monitoring.

The document outlines how the U.S. economy can benefit from reducing greenhouse gas emissions in electric generation, electricity consumption, passenger vehicles, natural gas, and hydrofluorocarbons (HFCs). It highlights cost savings for consumers and businesses, the decreasing cost of renewable energy and electric vehicle batteries, and the potential for increased industry revenues through methane leak reduction.

The Clean Air Task Force asserts that while efforts have been made to reduce methane from oil and gas production, local gas distribution systems—particularly aboveground equipment like city gates and metering stations—have been neglected. Citing EPA data, the author notes that emissions from these large stations are larger than those from outdated underground pipes and can be fixed cheaply. The document emphasizes that reducing methane is critical for slowing the rate of warming in the coming decades, complementing the primary priority of reducing CO2 from power plants.

The report details the expansion of solar energy in the U.S., focusing on rooftop photovoltaic (PV) systems, large-scale PV, and concentrating solar power (CSP). It highlights significant cost reductions, the role of state and federal incentives, and the environmental benefits of transitioning from fossil fuels to solar, while addressing grid integration challenges and land-use impacts.

The Union of Concerned Scientists (UCS) identifies a significant opportunity for the United States to utilize agricultural residues and manure to reduce oil and coal dependence. By 2030, the U.S. could tap 155 million tons of residues and nearly 60 million tons of manure, which could generate over 10 billion gallons of ethanol or 166 billion kilowatt-hours of electricity. The document emphasizes that sustainable use requires balancing energy needs with soil health, suggesting that no-till farming and cover crops can mitigate erosion. Geographically, a small number of states, led by Iowa, hold the majority of this potential, with specific opportunities identified in Arkansas, Texas, and California based on their dominant crops and livestock.

The report argues that rising temperatures and drier conditions in the American West, combined with a trend of building homes in wildfire-prone areas, have led to longer fire seasons and soaring suppression costs. It highlights a misalignment of incentives where federal taxpayers bear the brunt of firefighting costs while local zoning allows risky development. The document details the broad economic impacts of wildfires—extending far beyond direct suppression to include public health crises, infrastructure damage, and tourism losses—and recommends a shift toward resilience, stricter building codes, and carbon emission reductions.

The document argues that climate change is creating hotter, drier conditions in the American West, leading to more frequent and severe wildfires. This risk is compounded by increased residential and commercial development in fire-prone areas and federal policies that prioritize immediate fire suppression over proactive forest management. The report details the escalating economic costs of suppression and the broader impacts on infrastructure, public health, and water supplies, while recommending zoning reforms, fireproofing, and carbon emission reductions to build resilience.

The document argues that climate change is creating warmer, drier conditions in the western United States, leading to longer fire seasons and more frequent large wildfires. This environmental shift, combined with increased development in fire-prone areas and a federal management bias toward fire suppression over proactive risk reduction, has caused firefighting costs to exceed $1 billion annually since 2000. The report highlights significant secondary costs, including infrastructure damage, public health crises from smoke, and watershed rehabilitation. It recommends stricter zoning laws, carbon emission reductions, and a shift in funding toward long-term forest health and community resilience.

The document highlights how human-induced climate change is damaging U.S. cultural heritage, including prehistoric shell mounds in Florida, the historic districts of St. Augustine, and multiple NASA research and launch facilities. It emphasizes that sea-level rise and extreme weather are already causing structural damage and operational disruptions, calling for urgent national resources for adaptation and mitigation.