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Energy efficiency building envelope4/18/2024 The resulting household air pollution causes around 2.5 million premature deaths every year, with Africa and Asia hardest hit. Improve access to clean cooking: More than 2.6 billion people rely on the inefficient and polluting use of biomass, kerosene or coal as a primary cooking fuel. The safe recycling of old stock is particularly important for air conditioners and refrigerators, which contain powerful greenhouse gases. Subsidies would also assist manufacturers in upgrading production lines to produce more efficient equipment, and support the effective disposal of old equipment. Sales could be accelerated quickly, providing relief to the entire appliance supply chain, while increased use of smart connected appliances could reduce consumer bills and electricity system operation costs. Action to support the replacement of old appliances with new, highly efficient and connected appliances would create 7-16 jobs for every million dollars spent. This has slowed the rate of improvement in energy efficiency. More efficient and connected household appliances: Lower household incomes, disruption to global supply chains and the closure of retail outlets have resulted in the deferral or cancellation of many appliance purchases. Government investment in accelerating energy efficiency in buildings would bring long-lasting benefits: it would reduce energy bills for consumers, reduce energy poverty, improve health and comfort, and improve resilience in the face of climate events and price shocks. Targeting support to social housing and government buildings in the first instance could help kick-start efficiency improvement works, creating a pipeline of projects for the industry. Measures in this area often have short lead-times: existing efficiency programmes, for example, can be rapidly expanded and new projects can be shovel-ready within weeks or months. Retrofit existing buildings and more efficient new constructions: We estimate that 9‑30 jobs would be created for every million dollars invested in energy efficiency measures in the buildings sector. Measures to promote energy efficiency, renewables and clean cooking access within the buildings sector could mitigate the impacts of the crisis, provide jobs and kick-start economic recovery, as well as bringing long-term benefits well beyond the buildings sector as savings from lower energy bill are reinvested, and as energy system resilience and sustainability is improved. In this section we explore options that could stimulate job creation and provide a boost to the economy while also improving sustainability and resilience. Lack of access to clean cooking is a major inequality issue for the 2.6 billion people who currently lack access to it, and the decline in investment in 2020 is likely to slow progress towards achieving this sustainable development goal. With buildings accounting for more than 30% of global energy use today and 30% of energy-related CO 2 emissions, investment needs to accelerate significantly if the world is to meet its sustainable development goals. Investment in energy efficiency in buildings is expected to fall by nearly 15% in 2020 from around $150 billion in 2019. More than 25 million jobs across the sector have been lost or are at risk in 2020. The Covid-19 pandemic is resulting in drastic declines in construction and investment in the buildings sector because of disruptions to on-site working conditions, labour availability and material supply chains. Close to 10% of the global workforce today is involved in construction, manufacturing related to buildings and other related activities.
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