What is Heat Island and What is Being Done About Them?

Built Environment & Green Building | News

New Jersey Spotlight News Anchor Briana Vannozzi interviewed Jennifer Ward Souder, a Project Manager for the Center for Urban Policy Research (CUPR). Ms. Souder discussed the growing impact of the urban heat island effect across New Jersey, where densely built environments with extensive pavement and roofing absorb and retain heat, leading to higher temperatures than surrounding rural areas. This phenomenon disproportionately affects overburdened communities such as Newark, Paterson, Trenton, and Camden, where residents already face environmental and public health challenges. Elevated temperatures increase energy demand for cooling, strain the power grid, and contribute to air pollution, while also posing serious health risks, particularly for vulnerable populations without access to air conditioning or with preexisting conditions.

To address these challenges, the New Jersey Board of Public Utilities has committed $5 million to fund heat mitigation projects across 10 municipalities. The initiative includes large-scale projects, resilience hubs, and smaller community-based efforts focused on solutions such as tree planting, green roofs, cooling centers, and other green infrastructure. Rutgers is playing a key role by providing technical assistance, helping measure baseline and post-project temperatures, and evaluating both quantitative and community-level impacts. Success will be assessed through temperature data, modeling, and community feedback to ensure these interventions not only reduce heat but also improve quality of life and neighborhood usability.