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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 Centre for Environmental Rights (CER) is calling on the South African Department of Environmental Affairs to formally publish the draft Strategy to Address Air Pollution in Dense Low-Income Settlements for public comment by 30 April 2015. The CER argues that residents in low-income settlements suffer disproportionate exposure to poor air quality from industrial sources and domestic fuel burning, leading to severe respiratory and cardio-vascular illnesses, particularly in children and the elderly. The document highlights that the strategy was a deliverable as far back as 2010 and is essential for local governments, such as the Nkangala District Municipality, to meet air quality compliance goals by 2020. The CER asserts that the state's failure to address these health risks violates constitutional rights to an environment not harmful to health and the progressive realisation of adequate housing.

The document argues that climate change adaptation measures involving green and blue areas provide significant co-benefits for human health, which are often overlooked in policy design. It develops a conceptual framework based on five pathways: prevention of climate and pollution effects, improvement of ecosystem quality, social environment benefits, economic activity development, and interaction with microorganisms. The authors review existing literature using objective, self-reported, and mixed methodologies, finding a generally positive but inconsistent correlation between natural environments and health outcomes, with green areas being more extensively studied than blue areas.

The report argues that sustainable urban design, guided by 'The 8 Principles' (Walk, Connect, Transit, Cycle, Mix, Densify, Compact, Shift), delivers significant environmental, economic, and social benefits. It provides a comprehensive review of data from Chinese cities and international examples to demonstrate that reducing car dependence and increasing density improves air quality, boosts property values, and enhances public health. The document specifically highlights China's unprecedented scale of urbanization as a critical area for applying these principles to avoid the pitfalls of 'superblocks' and car-centric planning.

The report provides a framework for measuring the transition to sustainable consumption and production (SCP) by identifying specific indicators for SDG 12 and related targets in other SDGs. It organizes these indicators into six domains: scale of resource use, decoupling, environmental impact, technology and lifestyles, financing and investing, and policy support. The document emphasizes the need for 'positive indicators' to show the return on investment in SCP and highlights significant data gaps, particularly in developing countries, while suggesting a set of headline indicators to serve as proxies for global progress.

The document argues that the current 75 ppb ozone standard is insufficient to protect public health, particularly for sensitive populations like children and asthmatics. It advocates for a 60 ppb primary standard based on scientific evidence of lung function decrements and inflammation at that level. It also calls for a separate secondary standard of 7 ppm-hrs using the W126 metric to protect vegetation and ecosystems, specifically in Class I areas.

The report finds that most Americans, including those most concerned about global warming, have limited understanding of its current and future impacts on human health and the disproportionate vulnerability of certain social groups.

The UNEP Financial Inquiry argues that while global financial assets are abundant, investment flows are misaligned with sustainable development due to systemic failures and ineffective pricing. It identifies five key financial areas for alignment—banking, bonds, institutional investment, central banks, and systemic risk assessment—and proposes a performance framework based on effectiveness, efficiency, and resilience to measure the scaling of sustainable finance.

The statement criticizes the South African government for granting air quality standard postponements to Eskom, Sasol, and Engen on 24 February 2014. It asserts that these postponements effectively legalize toxic air, contradicting Section 24 of the constitution and a 1995 promise by President Mandela. The document highlights the severe health impacts of Eskom's pollution, estimating 20,000 premature deaths and an economic cost of R230 billion, while arguing that industries have had sufficient time since 2004 to implement pollution control technologies.

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.

The report links the expansion of the palm oil industry in Southeast Asia to the use of fire for land preparation, which frequently results in uncontrollable landscape fires. These fires, particularly those on drained peatlands, release hazardous particulate matter that causes an estimated 110,000 deaths annually in the region. The document highlights the exacerbating role of climate-driven droughts and the significant economic losses in tourism and industry, while calling for a global shift toward deforestation-free and peat-free palm oil production.

The document defines electric vehicles (EVs) as cars or trucks powered by electric motors using batteries or fuel cells, distinguishing them from conventional hybrids. It categorizes EVs into battery-electric vehicles, plug-in hybrids, and hydrogen fuel cell vehicles, noting that EVs generally produce fewer greenhouse gas emissions than fossil-fuel vehicles. The guide highlights that battery-electric cars offer the lowest emissions and simplest maintenance, while plug-in hybrids provide a bridge for those with longer trips, and fuel cell vehicles offer fast refueling but suffer from limited infrastructure, particularly in the US.

The authors contend that current 'business-as-usual' urbanization, characterized by car-oriented infrastructure, leads to high greenhouse gas emissions, economic losses from congestion, and safety risks. They advocate for 'smart urban mobility'—which combines technology with coordinated planning—to 'leapfrog' car-centric development. Examples of successful interventions include Mexico City's Metrobús BRT, Beijing's low emission zone, and Medellín's Metrocable. The document highlights 2015 as a pivotal year due to the finalization of the UN Sustainable Development Goals, upcoming climate negotiations, and the UN Decade of Action on Road Safety.

The report examines three 'gold' rated transit-oriented developments—Hammarby Sjöstad in Sweden, Quartier Vauban in Germany, and Liuyun Xiaoqu in China—to illustrate the practical application of 'The 8 Principles' for sustainable urban design. These principles emphasize walking, cycling, high-quality transit, mixed-use zoning, density, and compact growth to reduce car dependency. The findings show that such designs lead to significant environmental benefits, such as lower emissions and water use, and economic gains, including higher property values and strong market demand, while only marginally increasing construction costs compared to traditional methods.

The document argues that the UK is falling behind global standards in environmental law enforcement and advocates for systemic legal reforms to increase citizen access to justice and the use of strategic litigation to protect the environment.

The 2015 SAIIA Sasol Environmental Sustainability Project (ESP) is an educational competition for South African Grade 10-12 learners. Participants work in teams of three to produce a research paper of up to 12 pages focusing on a selected theme—Biodiversity, Climate Change, or Sustainable Development—and a specific topic such as energy, oceans, or air pollution. The project requires both a local and an international case example. The programme consists of three phases: the research paper, provincial or regional presentations for top papers, and the SAIIA Young Leaders Conference from 6-11 December 2015 in Gauteng, where top learners draft the 2015 SAIIA Young Leaders Declaration for government and UN officials. Key deadlines include school registration by 11 May 2015 and final paper submission by 21 July 2015.

The SEI Strategy 2015–2019 establishes a framework to bridge science and policy through three primary delivery areas: scientific research, policy engagement, and capacity development. The institute aims to shift from traditional reporting toward a more integrated approach that includes behavioral science, geopolitics, and targeted communication. Central to this strategy is the launch of 'SEI Initiatives'—specialized research hubs focusing on critical issues like climate finance, fossil fuels, and the water-energy-food nexus. The document also details the enabling infrastructure required for these goals, including the PMEC monitoring system and a suite of analytical tools such as LEAP and WEAP, while emphasizing the need to engage 'hard-to-reach' stakeholders in the private sector.

The report finds that Americans are generally unaware of the health risks associated with global warming, with 70% having given the issue little or no thought. Only 31% believe global warming is currently harming the health of people in the U.S. to a moderate or great deal, and only 27% could name at least one related health problem. While there is limited awareness of current risks, 34% to 38% of respondents believe conditions such as air pollution, pollen allergies, and heat stroke will become more common in their communities over the next 10 years. Public trust for information on this topic is highest for primary-care doctors (49%), followed by family/friends, the CDC, climate scientists, and the American Medical Association. Additionally, nearly half of respondents believe federal agencies like the CDC, NIH, or FEMA (47%) and the U.S. Congress (46%) should do more to protect the public from these health problems.

EMBARQ Brasil provided technical assistance to Rio de Janeiro, Belo Horizonte, and Brasilia to design and implement bus rapid transit (BRT) systems. By 2014, 154 kilometers of BRT corridors were launched, reducing commute times by 50 percent for 1.5 million people and improving air quality and road safety. The success of these projects has led to plans for an additional 211 kilometers of BRT networks in these cities.

The Centre for Environmental Rights (CER) reports that PAIA is poorly implemented in South Africa, with public bodies frequently refusing environmental information requests by citing the protection of third-party commercial interests. While some departments like the DEA show consistency, others like the DMR and various municipalities exhibit high refusal rates and poor response times. The report highlights a specific lack of transparency regarding oil refinery atmospheric emission licences and details litigation used to compel the disclosure of environmental records from corporate polluters.