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 | Sep 27, 2019
AIA declaration: Climate change requires āholistic approachā
Must address interdependencies among people, buildings, infrastructure, and the environment.
Codes and Standards | Sep 26, 2019
San Joseās new building energy code is the most stringent among large cities
New regulations aim to make zero-emission electric buildings the norm.
Codes and Standards | Sep 26, 2019
Building support for climate action depends on linking it to health, economic benefits
USGBC report finds most people donāt think environmental problems significant enough to prioritize action.
Codes and Standards | Sep 20, 2019
OSHA has a new chief for its construction directorate
Former Army medical staffer Scott Ketcham has extensive OSHA experience.
Codes and Standards | Sep 20, 2019
American Wood Council updates free Connection Calculator
Tool includes cross-laminated timber connection provisions and post-frame ring shank nails.
Codes and Standards | Sep 19, 2019
Virtual reconnaissance of Bahamas finds some structures performed well during Dorian
Amid devastation, lives likely saved by resilient buildings.
Codes and Standards | Sep 19, 2019
Obama-era Waters of the U.S. rule revoked
New rule expected to define protected waterways more narrowly.
Codes and Standards | Sep 17, 2019
California will enact rent cap bill limiting rent increases to 5% plus inflation
Applies to apartments built at least 15 years ago.
Codes and Standards | Sep 17, 2019
Zero energy buildings can be constructed with no added upfront cost
ROI can be realized in as little as one year.
Codes and Standards | Sep 13, 2019
Researchers use U. of Arkansas buildings as testbed for CLT panels
Investigation could influence future use of the materials.