Global cooling: increasing world-wide urban albedos to offset CO2

  title={Global cooling: increasing world-wide urban albedos to offset CO2},
  author={Hashem Akbari and Surabi Menon and Arthur H. Rosenfeld},
  journal={Climatic Change},
Increasing urban albedo can reduce summertime temperatures, resulting in better air quality and savings from reduced air-conditioning costs. In addition, increasing urban albedo can result in less absorption of incoming solar radiation by the surface-troposphere system, countering to some extent the global scale effects of increasing greenhouse gas concentrations. Pavements and roofs typically constitute over 60% of urban surfaces (roof 20–25%, pavements about 40%). Using reflective materials… 
The long-term effect of increasing the albedo of urban areas
Solar reflective urban surfaces (white rooftops and light-colored pavements) can increase the albedo of an urban area by about 0.1. Increasing the albedo of urban and human settlement areas can in
Effects of white roofs on urban temperature in a global climate model
Increasing the albedo of urban surfaces has received attention as a strategy to mitigate urban heat islands. Here, the effects of globally installing white roofs are assessed using an urban canyon
Radiative forcing and temperature response to changes in urban albedos and associated CO2 offsets
Radiative forcing and temperature response to changes in urban albedos and associated CO 2 offsets Surabi Menon 1 , Hashem Akbari 1* , Sarith Mahanama 2 , Igor Sednev 1 and Ronnen Levinson 1 Lawrence
Measuring the impacts of a real-world neighborhood-scale cool pavement deployment on albedo and temperatures in Los Angeles
Climate change is expected to exacerbate the urban heat island (UHI) effect in cities worldwide, increasing the risk of heat-related morbidity and mortality. Solar reflective ‘cool pavement’ is one
Climatic effects of surface albedo geoengineering
[1] Various surface albedo modification geoengineering schemes such as those involving desert, urban, or agricultural areas have been proposed as potential strategies for helping counteract the
The radiative forcing benefits of “cool roof” construction in California: quantifying the climate impacts of building albedo modification
  • R. VanCuren
  • Environmental Science, Engineering
    Climatic Change
  • 2011
Exploiting surface albedo change has been proposed as a form of geoengineering to reduce the heating effect of anthropogenic increases in greenhouse gases (GHGs). Recent modeling experiments have
Regional climate consequences of large-scale cool roof and photovoltaic array deployment
Modifications to the surface albedo through the deployment of cool roofs and pavements (reflective materials) and photovoltaic arrays (low reflection) have the potential to change radiative forcing,
Effects of Urban Surfaces and White Roofs on Global and Regional Climate
Land use, vegetation, albedo, and soil-type data are combined in a global model that accounts for roofs and roads at near their actual resolution to quantify the effects of urban surface and white
On the Effects of Albedo Increase through Reflective Roofing on Philippine Urban Atmospheric Temperature: Real-Time Parameter Inputs
With global warming as one of the major concerns today, people try to find ways to control factors that affect atmospheric temperature. One of which is surface albedo. Akbari, et al. (2009), asserts


Cooler Paving Materials for Heat-Island Mitigation
Many cities suffer summer daytime temperatures greater than their suburban or rural surroundings. One of the causes of this “heat island” phenomenon is the absorption of sunlight by dark pavements.
Meteorological and air quality impacts of increased urban albedo and vegetative cover in the Greater Toronto Area, Canada
The study described in this report is part of a project sponsored by the Toronto Atmospheric Fund, performed at the Lawrence Berkeley National Laboratory, to assess the potential role of surface
Urban Surface Modification as a Potential Ozone Air-quality Improvement Strategy in California: A Mesoscale Modelling Study
Two of several surface modification (heat-island reduction) strategies, increased surface albedo and urban reforestation, are evaluated via mesoscale meteorological and photochemical modelling of
Characterizing the Fabric of the Urban Environment: A Case Study of Sacramento, California
To estimate the impact of light-colored surfaces (roofs and pavements) and urban vegetation (trees, grass, shrubs) on meteorology and air quality of a city, it is essential to accurately estimate the
Meteorological and air quality impacts of heat island mitigation measures in three U.S. cities
Author(s): Taha, Haider | Abstract: This report investigates the air pollution reduction benefits associated with mitigating urban heat islands in three U.S. cities. The effects of these measures in
Reflective surfaces for cooler buildings and cities
Abstract Many roofs and pavements are dark coloured. In warm and sunny climates these surfaces become hot by absorbing sunlight. This can have the undesirable conseauences of increasing the heat flow
The Effect of Pavements' Temperatures On Air Temperatures in Large Cities
Author(s): Pomerantz, M. | Abstract: A semi-quantitative connection between the albedo of pavements and its effect on the diurnal variation of air temperature in large cities is presented.
Estimating solar access of typical residential rooftops: A case study in San Jose, CA
Shadows cast by trees and buildings can limit the solar access of rooftop solar-energy systems, including photovoltaic panels and thermal collectors. This study characterizes rooftop shading in a