Study: Harvesting rainwater from rooftops could help cities stay cool

clock • 2 min read
Credit: iStock
Image:

Credit: iStock

Researchers explore how rainwater collected on rooftops in cities could be used to assist with urban cooling as a more sustainable alternative to air conditioning

Collecting rainwater from rooftops and using it to spray buildings during hot weather could help cities cut air conditioning use, lower urban temperatures, and lessen the impact of heatwaves. That is...

To continue reading this article...

Join BusinessGreen

In just a few clicks you can start your free BusinessGreen Lite membership for 12 months, providing you access to:

  • Three complimentary articles per month covering the latest real-time news, analysis, and opinion from Europe’s leading source of information on the Green economy and business
  • Receive important and breaking news stories via our daily news alert
  • Our weekly newsletter with the best of the week’s green business news and analysis

Join now

 

Already a BusinessGreen member?

Login

Author spotlight

Amber Rolt

Award-winning business journalist

View profile
More from Amber Rolt

Welsh Parliament connects to Cardiff's low carbon heat network

'The Barbra Streisand effect': UK heat pump demand hits new heights in September

More on Buildings

London's O2 arena slashes emissions after shift to clean energy and EVs
Buildings

London's O2 arena slashes emissions after shift to clean energy and EVs

Venue owner and operator AEG said CO2 emission reductions were achieved through energy efficiency improvements, renewables offtake deals, and a shift to on-site electric vehicles

Amber Rolt
clock 30 October 2026 • 2 min read
COP31: Global initiative launched to accelerate push for electrified and efficient buildings
Buildings

COP31: Global initiative launched to accelerate push for electrified and efficient buildings

Antalya Compact for Energy Efficient Buildings compact aims to provide a framework for countries and businesses to accelerate electrification and building decarbonisation worldwide

Michael Holder
Michael Holder
clock 29 October 2026 • 4 min read
Keepmoat's Hannah Needham: 'No matter how much experience you have, there's always another challenge'
Buildings

Keepmoat's Hannah Needham: 'No matter how much experience you have, there's always another challenge'

Housebuilder Keepmoat’s sustainability coordinator reflects on her start as a 'green champion' in the NHS, and how AI is playing an increasingly important role in crunching green numbers

Stuart Stone
Stuart Stone
clock 21 October 2026 • 7 min read