Lights out this weekend! If we organized and each took part in small climate actions the effects could be massive. That’s the sentiment behind Earth Hour — a movement to catalyze global climate action. It might seem silly but the movement has seen some major wins over the years:
💡 In 2007, 2.2 million people turned off their lights for one hour to show Australia’s government that people were concerned about climate change. (That number jumped to 50 million the following year!)
🌊 In 2013, Earth Hour helped lead to the creation of Argentina’s largest marine protected area, the 3.4 million hectare Banco Namuncurá (Burdwood Bank), tripling the area of protected waters in the country.
🪸 In 2018, Earth Hour helped inspire public pressure that led to 5 million sq km of its Exclusive Economic Zone in the South Pacific being classified as a Managed Marine Area – helping preserve vital marine ecosystems for present and future generations.
Earth Hour is Saturday, March 23rd, 2024.
To find out how you can participate visit Earthhour.org #earthhour
Source: @earthhourofficial and @wwf
Design by @byMatthewMiller for @FutureEarth
The UK’s retrofit gap remains the defining issue for sustainable construction. The National Retrofit Hub’s call for a stronger national retrofit system exposes persistent weaknesses in standards, skills, finance and policy stability. Treating retrofit as national infrastructure would support whole life carbon reduction, improve building lifecycle performance and strengthen environmental sustainability in construction across the existing building stock.
Nesta’s finding that electricity bills are rising more slowly than gas could sharpen the business case for low carbon design. Heat pumps, electric vehicles and fabric-first upgrades become more attractive when assessed through life cycle cost rather than upfront capital alone. Developers, landlords and retrofit providers can position electrification as a route to energy-efficient buildings, lower exposure to fossil-fuel volatility and progress towards net zero carbon buildings.
Climate adaptation is now a core test of sustainable building design. Planting, shading, passive cooling, urban greening and green infrastructure are becoming essential responses to overheating risk, particularly for lower-income households. Eco-design for buildings must address summer resilience as well as winter efficiency, linking sustainable design with health, comfort and long-term carbon footprint reduction.
Major infrastructure remains the sector’s most difficult contradiction. Renewed uncertainty over Heathrow expansion raises questions about the carbon footprint of construction, embodied carbon in materials and the credibility of net zero whole life carbon policy. Large projects need robust whole life carbon assessment, lifecycle assessment and transparent sustainable material specification, supported by environmental product declarations (EPDs), low embodied carbon materials and circular economy in construction principles. Sustainable construction has the techniques; consistent governance is still missing.
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