Photos by @jameswhitlowdelano Interesting pushback to the Heat Island...

Every Day Climate Change 2 years ago

Photos by @jameswhitlowdelano Interesting pushback to the Heat Island Effect/urban deforestation post using an argument similar to what a Malaysian logging conglomerate might use. Apologies to those who draw offense when facts & evidence get in the way of a good narrative. Image #1: Heat Island Effect: In the midday sun in Tokyo on this July day it is 45.7 C (114.3 F). The Heat Island Effect in Tokyo is exacerbated by urban deforestation. Seijo is in Tokyo's Setagaya Ku (Ward), which has suffered a 34.7% tree cover loss since 2013, according to a University of Tokyo, Department of Natural Environmental Studies research paper, intensifying the heat island effect in urban Tokyo. In "leafy" districts, like Seijo, few trees exceed 3 - 4 meters in height because few houses stand long enough for the trees to reach mature height or the trees are assiduously pruned to avoid shedding leaves, seeds or fruit on neighbors' properties. When a house in Tokyo is demolished, rarely lasting longer than 25 years, the entire property is razed, including removing all trees or shrubs, leaving bare ground. Seijo, Setagaya-Ku, Tokyo, Japan Image# 2: On a treeless street, parallel to this one, in the direct sun, just steps away from this shaded street in Tokyo's Seijo neighborhood, the sun drove the temperature up to 45.7 C (114.3 F). Treelined streets like this one are so rare in Tokyo's Setagayu Ku (Ward), that Seijo is famous for these "sakura" cherry trees. Despite being a blistering 37.5C (99.5 F) under the tree canopy, the temperature drops by 8.1 C (14.6 F) compared to its parallel asphalt neighbor exposed to the punishing rays of the sun. Image#3: When older residential structures, which rarely last more than 25 years in Tokyo, are razed, the property is wiped clean of all trees or shrubs that shaded the ground. Image# 4: The Sengawa (Sen River), which separates Seijo from Soshigaya in Setagaya Ku (ward) in Tokyo, is sealed in concrete. If rivers are not reduced, like this one, to a concrete trough, they are walled or leveed as part of massive flood control projects in this densely-populated, typhoon-prone country. #climatechange #heatislandeffect

layersDaily Sustainability Digest

Published about 9 hours ago



The decarbonisation of construction is moving rapidly from policy to implementation. On Teesside, a major operation and maintenance award for the UK’s first commercial‑scale carbon capture project signals a shift from pilot schemes to large‑scale delivery. The East Coast Cluster development could significantly reduce embodied carbon in materials central to sustainable construction. It aligns with growing demand for low embodied carbon materials and whole life carbon assessment in both new projects and retrofit schemes.

Advances in low carbon design are reshaping plant and logistics. JCB’s introduction of excavators operating on 100% biodiesel offers an immediate pathway to cut the carbon footprint of construction equipment, complementing the move towards carbon neutral construction. Tevva’s hydrogen‑electric truck extends zero‑emission transport options in daily site logistics, supporting the transition to energy‑efficient buildings and greener supply chains that improve lifecycle assessment outcomes and life cycle cost efficiency.

The workforce and regulation are evolving to sustain environmental sustainability in construction. New government funding to address building‑safety competence could accelerate sustainable building design, digital quality assurance, and modern methods using eco‑friendly construction processes. Regulatory tightening on waste management reinforces the importance of circular economy in construction, verified waste routes and end‑of‑life reuse in construction to minimise the environmental impact of construction operations.

Boards across the sector are being urged to embed sustainable building practices and apply life cycle thinking in construction procurement. By locking in low carbon construction materials from carbon capture hubs, piloting renewable fuels and hydrogen drivetrains, and aligning projects with standards such as BREEAM and future BREEAM v7 frameworks, companies can position for net zero whole life carbon performance. The current momentum places the industry closer to achieving true decarbonising of the built environment, where green construction, sustainable material specification, and eco‑design for buildings underpin every decision from design to demolition.

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