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The report highlights the escalating risks of extreme heat on human health and productivity, noting that 356,000 people died from extreme heat in 2019. It argues that while cooling demand is expected to soar—with space-cooling units potentially reaching 2.5 billion by 2030—this must be managed through sustainable solutions to avoid tripling global electricity demand by 2050. The text advocates for a mix of passive cooling, nature-based solutions, and energy-efficient active cooling, supported by policies like Minimum Energy Performance Standards (MEPS) and the appointment of Chief Heat Officers in cities such as Athens and Miami Dade County.

Chilling Prospects 2022 identifies that 3.66 billion people face high or medium risk from cooling access challenges, with 1.2 billion rural and urban poor at high risk. The report highlights critical gaps in food cold chains, health services, and human safety, while forecasting that achieving SDG 7.1 and SDG 1.1 could reduce the high-risk population by 36% by 2030. It advocates for a transition to sustainable, energy-efficient cooling and the implementation of National Cooling Action Plans (NCAPs) to mitigate climate impacts and protect vulnerable populations.

The report finds that without action to reduce emissions, outdoor workers in the US will face a three- to fourfold increase in exposure to dangerous heat (heat index above 100°F) by midcentury, putting up to $55.4 billion in annual earnings at risk. It highlights that Black/African American and Hispanic/Latino workers are disproportionately represented in outdoor occupations and will bear a heavier burden of these losses. The authors argue that current voluntary heat guidelines are insufficient and call for the enactment of the Asunción Valdivia Heat Illness and Prevention Act of 2021 to establish mandatory, enforceable federal heat safety standards.

Climate Central developed an Urban Heat Intensity Index for 159 U.S. cities, finding that New Orleans, Newark, New York City, Houston, and San Francisco have the highest intensity scores. The report identifies albedo, lack of greenery, population density, and building height as primary drivers of the UHI effect. These conditions exacerbate heat waves, worsen air quality through ground-level ozone formation, and disproportionately affect vulnerable populations, particularly those in formerly redlined neighborhoods. Proposed solutions include short-term emergency cooling measures and long-term infrastructure changes such as planting trees, installing green and cool roofs, and deploying solar energy.

The Green Corridors programme in Medellín has significantly reduced urban temperatures and air pollution while creating employment and public spaces.

The survey of 1,269 residents in Helsinki and Tallinn reveals a high valuation of urban nature for pollution reduction, habitat provision, and relaxation, while economic value and community building are seen as less important. Residents in both cities expressed concerns over antisocial behavior and the risk of crime in isolated green areas, as well as the loss of 'wild' nature to infill building. Preferred new green elements include trees, green walls, and meadows. Regarding urban planning, approximately 50% of respondents felt their cities did not actively promote participation opportunities, showing a preference for 3D/VR tools and direct engagement like walks with planners over social interaction with other residents. Area-specific analysis highlights the use of Kalasatama and the Pollinator Highway primarily for exercise, daily errands, and commuting, with walking and cycling as the dominant modes of transport.

The assessment finds that nature-based infrastructure (stream renaturalization) is the most cost-efficient and climate-resilient option, providing the highest net benefits primarily through avoided flood damages and additional water supply. While grey infrastructure (concrete culverts) has the highest upfront costs and provides no environmental co-benefits, nature-based solutions maintain superior performance across various climate scenarios, although they are more labour-intensive to maintain.

The document analyzes how gender norms, poverty, and social structures exacerbate the vulnerabilities of women and girls to heat stress and limit their access to cooling services. It highlights specific risks in healthcare, domestic labor, and agriculture, while calling for sex-disaggregated data and gender-transformative policies to achieve universal sustainable cooling.

The document argues that peri-urban ecosystems in India are critical for the resilience of both urban and peri-urban populations but are frequently neglected due to ambiguous administrative boundaries and rapid urbanisation. It highlights the essential services these areas provide, such as flood control, food security, and microclimate regulation, while warning that unplanned infrastructure leads to environmental degradation. The brief recommends integrated, flexible planning at the district level, the revival of District and Metropolitan Planning Committees, and the adoption of participatory, community-led governance to balance development with ecological preservation.

The report identifies that 1.12 billion people across 76 countries are at high risk due to a lack of access to cooling, with the COVID-19 pandemic increasing this number by approximately 50 million in 2021. It highlights critical gaps in rural and urban poor populations, particularly in Africa and Asia, and examines the urgent need for sustainable cold chains for vaccine distribution. The document also promotes National Cooling Action Plans (NCAPs) and showcases passive and solar-powered cooling solutions in countries like Colombia, Rwanda, Bangladesh, and Indonesia.

The petition argues that New York City's community gardens provide essential public health, environmental, and social benefits, yet remain vulnerable to development due to a lack of legal protections. It requests the designation of forty specific gardens as Critical Environmental Areas (CEAs) and a broader assessment to grant CEA status to all City-owned gardens. The document details how these spaces mitigate urban heat and flooding, improve food security in 'food deserts', and support mental health and social cohesion, particularly in marginalized Black and Latinx communities.

The document describes how the 'urban heat island' effect causes cities to be hotter than rural areas, noting that this heat is disproportionately felt in formerly 'redlined' neighborhoods. It highlights the role of tree canopies and green spaces in mitigating heat and suggests resources and methods for journalists to report on urban heat inequality.

The document examines the vulnerability of agriculture-based livelihoods to climate hazards in peri-urban Gorakhpur and argues that climate-resilient development requires gender-responsive strategies. It identifies structural governance gaps, such as the lack of gender sensitisation in urban local bodies and the siloed management of urban, peri-urban, and rural areas, as barriers to inclusive resilience. The report advocates for a two-pronged strategy: sensitising policy-makers and planners while engaging diverse social groups, particularly women, through participatory methods and community-based institutions to ensure their needs and priorities are addressed in climate-compatible development.

The document details how climate indicators from the Copernicus Climate Data Store (CDS) are integrated into the SAVi tool to improve the analysis of infrastructure resilience. It covers a literature review of climate impacts on energy, irrigation, wastewater, buildings, roads, and nature-based infrastructure, providing specific equations to link climate variables to asset performance. The report includes simulation results for Johannesburg, South Africa, demonstrating how climate variables like temperature and precipitation affect load factors, thermal efficiency, and maintenance costs, ultimately impacting the economic viability and societal costs of these assets.

The document details how authoritative climate data from the Copernicus CDS is integrated into the SAVi model for nature-based infrastructure. It provides a literature review on the impacts of precipitation, vegetation, and temperature on assets like green roofs, wetlands, and urban forests. The report demonstrates the model's application through simulations in Johannesburg, showing how temperature affects phosphorus removal in wetlands and how increasing vegetation cover can mitigate heat-related labor productivity losses.

Climate Central's analysis of 242 U.S. cities shows that 96% have experienced an increase in cooling degree days since the 1970s, with the most significant rises in the South and Southwest. This trend is driving a projected 59% increase in residential air conditioning consumption by 2050, which contributes to carbon emissions, the urban heat island effect, and the release of heat-trapping gases from improper disposal.

The document highlights the intersection of public health disparities and electoral access in Arizona, arguing that the COVID-19 pandemic underscores the need for voting reforms. It identifies systemic health inequities affecting Black, Latino, and Indigenous communities and links these to a lack of adequate political representation. To improve the 2020 election, the Union of Concerned Scientists recommends implementing automatic and same-day registration, expanding voting centers in rural and tribal lands, and improving the verification and tracking of mail-in ballots.

The document highlights that older adults are disproportionately affected by extreme heat due to physiological vulnerabilities and social isolation. It argues that while air conditioning is critical, it can be inaccessible due to poverty or power failures, and its use contributes to further warming. The report emphasizes that social connection is a primary defense against heat deaths and details successful community interventions in cities like Philadelphia and Phoenix, while warning that the COVID-19 pandemic exacerbates risks by increasing isolation.

The study assesses the integration of climate adaptation into energy efficiency projects in the Baltic Sea Region, finding that mitigation and adaptation are largely treated as separate policy areas. While new buildings more frequently implement adaptation measures above minimum standards, retrofitted buildings primarily focus on mitigation. The report identifies key synergies, such as green roofs and automated indoor climates, but notes that their implementation is often ad hoc rather than planned. Significant barriers include a lack of legal requirements, funding gaps, and limited awareness among developers.

The document reports that 94% of 242 analyzed U.S. cities saw an increase in average summer temperatures since 1970, with summer nights warming faster than days. It highlights that 74% of cities experienced at least one additional week of above-normal temperatures, with the most significant increases concentrated in the Southeast and Texas.