United in Science 2024

United Nations 1 year ago

The science is clear – the world is far off track from achieving global climate goals, threatening a sustainable future for all. The impacts of climate change and hazardous weather are reversing development gains and threatening the well-being of people and the planet, according to a new multi-agency report coordinated by the World Meteorological Organization (WMO).  Greenhouse gas concentrations are at record levels, fuelling temperature increase into the future.  The emissions gap between aspiration and reality remains high. Under current policies, there is a two thirds likelihood of global warming of up to 3 °C this century, says the United in Science report. Human-caused climate change has resulted in widespread and rapid changes in the atmosphere, ocean, cryosphere and biosphere. The year 2023 was the warmest on record by a large margin, with widespread extreme weather. This trend continued in the first half of 2024.  The United in Science offers much-needed grounds for hope. It explores how advances in natural and social sciences, new technologies and innovation enhance our understanding of the Earth system and could be game changers for climate change adaptation, disaster risk reduction and sustainable development.  International collaboration, comprehensive governance frameworks for integrated observing systems and innovative financing models are needed.
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layersDaily Sustainability Digest

Published about 10 hours ago



Europe’s acceleration of low carbon steel investment marks a decisive step toward decarbonising the built environment and controlling embodied carbon in new infrastructure. Germany’s strong state aid signals that low embodied carbon materials will soon define procurement preferences and affect both whole life carbon assessment and life cycle cost analysis in major developments. Materials with verified certifications for net zero whole life carbon will gain priority as sustainable construction frameworks evolve, reflecting client demand for transparent supply chains and lower carbon footprint of construction.

Falling energy prices are strengthening the business case for energy-efficient buildings and low carbon design. Large-scale battery storage achieving competitive costs outside China and the US places renewable generation firmly within life cycle thinking in construction. The UK approval of the BWRX‑300 small modular reactor provides regulatory assurance for firm power needed to support eco-friendly construction operations, from cement kilns to fabrication plants. A more reliable grid will accelerate net zero carbon buildings and the transition to carbon neutral construction.

At project scale, the expanding circular economy in construction is reinforcing resource efficiency in construction. London’s new glass recycling facility will feed green building materials into façade and insulation supply chains, strengthening sustainable material specification for eco-design for buildings. Biochar’s role in carbon footprint reduction remains promising, though dependent on circular construction strategies and mature quality assurance to guarantee durable results. Genuine environmental sustainability in construction relies on traceable, scalable systems that clarify the environmental impact of construction.

Programmes targeting industrial efficiency continue to deliver the cheapest form of decarbonisation. Proven operational measures are expected to cut emissions by millions of tonnes and reduce costs, encouraging the sector to address whole life carbon at every stage of the building lifecycle performance. Investors and clients now see sustainable building practices and low carbon construction materials not as innovation but as standard risk management. Strengthened oversight of waste streams underlines that circular economy ambitions require clean closure at the system’s end, ensuring claims of sustainable building design and green construction remain credible.

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