Cities, where the urban heat island effect amplifies the impact of global climate change, are going to heat up in the coming decades. If greenhouse gas emissions continue on their current path, the average number of days that feel hotter than 100 degrees in the U.S. will more than double by 2050, according to a recent study.
Many cities around the world are taking action to keep cooler as temperatures rise. Some of the most common strategies are cool streets, cool roofs, and a broader urban tree canopy.
For example, Melbourne is mapping street trees and embarking on massive tree-planting efforts. The Australian city plans to double its canopy cover by 2040.
New York City has coated more than 10 million sf of rooftops with a white, reflective coating over the last decade. In Dallas, an initiative mapped areas that were hottest because of a lack of trees, and then planted trees in these areas along key pedestrian routes such as the paths that children take to school.
Tokyo has coated miles of streets with reflective pavements. Other cities have tested pavement that allows grass to grow through it.
Related Stories
Codes and Standards | Apr 21, 2023
Federal court overturns first natural gas ban in the U.S.
A recent ruling by the Ninth U.S. Circuit Court of Appeals in San Francisco invalidating Berkeley, California’s ban on natural gas within new building construction puts similar measures adopted around the country in legal jeopardy.
Codes and Standards | Apr 21, 2023
Sixteen-year-old climate law not having intended impact on decarbonizing federal buildings
Sixteen years out from a 2007 law that aimed to end the use of fossil fuels in federal buildings, gas heat is still being installed within the federal sphere.
Green | Apr 21, 2023
Boston to adopt stringent climate-friendly building code
Boston will soon adopt a new stringent green state building code that aims to significantly reduce carbon emissions in new construction and major renovations.
Multifamily Housing | Apr 21, 2023
Arlington County, Va., eliminates single-family-only zoning
Arlington County, a Washington, D.C., community that took shape in the 1950s, when single-family homes were the rule in suburbia, recently became one of the first locations on the East Coast to eliminate single-family-only zoning.
Contractors | Apr 18, 2023
New York City construction fatalities, injuries rise in 2022 as activity booms
New York City’s construction fatalities rose from nine in 2021 to eleven in 2022, according to a report by the New York City Department of Buildings. Recorded injuries also rose to 554 last year after leveling off in 2020 and 2021.
Resiliency | Apr 18, 2023
AI-simulated hurricanes could aid in designing more resilient buildings
Researchers at the National Institute of Standards and Technology (NIST) have devised a new method of digitally simulating hurricanes in an effort to create more resilient buildings. A recent study asserts that the simulations can accurately represent the trajectory and wind speeds of a collection of actual storms.
Green | Apr 18, 2023
USGBC and IWBI unveil streamlined certification pathway for LEED and WELL green building programs
The U.S. Green Building Council, Green Business Certification Inc., and the International WELL Building Institute released a streamlined process for projects pursuing certifications for the LEED green building rating system and the WELL Building Standard. The new protocol simplifies documentation for projects that are pursuing both certifications at the same time or that have already earned one certification and are looking to add the other.
K-12 Schools | Apr 18, 2023
ASHRAE offers indoor air quality guide for schools
The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) has released a guide for educators, administrators, and school districts on indoor air quality. The guide can be used as a tool to discuss options to improve indoor air quality based on existing HVAC equipment, regional objectives, and available funding.
Smart Buildings | Apr 7, 2023
Carnegie Mellon University's research on advanced building sensors provokes heated controversy
A research project to test next-generation building sensors at Carnegie Mellon University provoked intense debate over the privacy implications of widespread deployment of the devices in a new 90,000-sf building. The light-switch-size devices, capable of measuring 12 types of data including motion and sound, were mounted in more than 300 locations throughout the building.
Affordable Housing | Apr 7, 2023
Florida’s affordable housing law expected to fuel multifamily residential projects
Florida Gov. Ron DeSantis recently signed into law affordable housing legislation that includes $711 million for housing programs and tax breaks for developers. The new law will supersede local governments’ zoning, density, and height requirements.
