Articles sur Urban heat

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The familiar images of high-rise development, looking north here from Surfers Paradise, tell only one part of the story of the Gold Coast. Andrew Leach

Looking past the Gold Coast the world sees today

Behind the built-up glitz of Surfers Paradise lies a deep history that has been written and overwritten in successive layers that have become thinner and thinner as time goes on.
‘Soft fall’ surfaces are widely used in play areas where children might fall, but can also get very hot in the sun, which undermines this safety benefit. Brisbane City Council/Flickr

Materials that make heat worse for our kids demand a rethink by designers

Commonly used surfaces in play areas, such as "soft fall" materials and Astroturf, can heat up to 80-100°C in the sun. This makes them a hazardous design choice, especially as the climate gets hotter.
Whether it’s pressures of space or a warmer climate, which is affecting Melbourne’s elms, urban greening must respond to the challenges of 21st-century urban living. Joe Castro/AAP

Higher-density cities need greening to stay healthy and liveable

Greening cities that are becoming denser is a major challenge. City-dwellers' health benefits from both well-designed green spaces and urban density, so we must manage the tensions between them.
Upper Coomera is one of those fast-growing fringe suburbs that are hotter because of tightly packed housing with less greenery. Daryl Jones/

Out in the heat: why poorer suburbs are more at risk in warming cities

Recently published research has found that the concentration of poorer people in hotter places is a real problem for cities' capacity to cope with climate change.
Much of the ‘smart cities’ rhetoric is dominated by the economic, with little reference to the natural world and its plight. Ase from

Taking the city’s pulse: we need to link urban vitality back to the planet

The rhetoric of 'smart cities' is dominated by the economic, with little reference to the natural world and its plight. Truly smart and resilient cities need to be more in tune with the planet.
Some materials and surfaces radiate much more heat (red areas) than others, as can be seen in this thermal image of Arncliffe Street in Wolli Creek, Sydney.

Building cool cities for a hot future

Hot spots occur at the scale of where people live – the building, the street, the block – which means urban design and building materials have profound implications for our health and well-being.
Continued development of our cities is putting pressure on urban green spaces. AAP/David Crosling

Does higher-density city development leave urban forests out on a limb?

Achieving green cities will require more than just canopy cover targets and central city strategies. It will need new approaches to urban planning and development.
The shimmer of a heat mirage shows how a hard road surface increases urban temperatures by radiating heat into the air. Wikimedia Commons/Brocken Inaglory

If planners understand it’s cool to green cities, what’s stopping them?

It seems like a 'no brainer' to use urban greening to help cities adapt to increasing heat, but the uptake of green infrastructure, such as trees and vegetated roofs, surfaces and walls, is slow. Why?

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