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 8 hours ago



Regulatory momentum across the built environment is tightening as governments and industry bodies align around robust frameworks for decarbonising construction. The EU’s reform of carbon market controls aims to maintain strong carbon price signals to advance whole life carbon reduction, while ISO’s new standard on net‑zero transition plans gives investors and contractors a consistent structure for measuring life cycle cost and performance. The Science Based Targets initiative is establishing clearer boundaries between verifiable net zero carbon buildings and unsubstantiated claims, driving greater transparency in embodied carbon reporting and lifecycle assessment within construction supply chains.

Engineering progress is translating policy ambition into practice. Plans for a large‑scale direct air capture plant on Teesside highlight a new model of carbon neutral construction industry in the UK, pairing heavy engineering expertise with circular economy principles. Expansion of natural fibre insulation and low embodied carbon materials into mainstream housing retrofits demonstrates eco‑design for buildings moving beyond pilot projects. Sustainable construction now depends on accurate whole life carbon assessment and the specification of renewable building materials validated through environmental product declarations (EPDs).

Climate resilience is reshaping valuation and insurance models as climate‑driven subsidence data sharpen awareness of the environmental impact of construction. Developers are applying sustainable building design and low carbon design strategies to manage soil instability and resource efficiency in construction projects. The focus on whole life carbon and embodied carbon in materials signals a maturing market where green construction and sustainable building practices are metrics of competitiveness, not aspiration. Standards such as BREEAM v7 reinforce this shift toward lifecycle performance, end‑of‑life reuse in construction and circular construction strategies that define the next phase of environmental sustainability in construction.

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