The Klinaklini Glacier is the largest glacier in western North America outside...

NASA Climate Change 2 years ago

The Klinaklini Glacier is the largest glacier in western North America outside of Alaska, but it is shrinking. These two #Landsat images from Sept. 26, 1984 and Sept. 22, 2023 show how the glacier retreated northward more than 3 miles (5 kilometers). It is also getting skinnier. The ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) on NASA”s Terra satellite shows that klinaklini’s main stem thinned by over 650 feet (nearly 200 meters) between 2000 and 2019. And it’s not alone. Decades of satellite images of western Canada make it clear that the region’s glaciers are shrinking and that the rate of ice loss is accelerating. Scientific analysis found that rising temperatures and increases in rainfall, rather than snowfall, in the area are fueling the ice losses. This is a trend that is being seen across the planet. According to one recent estimate, glaciers, excluding the ice sheets on Greenland and Antarctica, lost an average of 267 gigatons of mass per year between 2000 and 2019, equivalent to 21 percent of the observed sea level rise during that period. Video Description: Alternates between two satellite views of Klinaklini Glacier 39 years apart. The first image shows white snow and ice covered areas that look like branches on the left side of the image. In the middle of the image are lines of dark gray and white that create a slow wave. This is the Klinaklini Glacier. At the top of the image is an area where two of this ice rivers meet, like a zipper. At the bottom of the image, the glacier line fades into a dark green. On the right side of the image, it is primarily shades of green uneven terrain. There is a bit of ice and snow covered areas closer to the glacier. In the second image, the look is similar, except most of the snow and ice covered areas now show a light gray and brown rocky terrain as it melted away. The glacier now only goes to the middle of the image before it changes to a light green color labeled as the glacial lake. There are also small white dots in the lake that are icebergs. #NASA #ClimateChange #Earth #EarthFromSpace

layersDaily Sustainability Digest

Published about 16 minutes 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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