Supermarket fridges should be closed, campaigners have said, as it emerges that the appliances use up one per cent of all UK electricity. Most shops use open fridges, which use far more energy to stay cool than alternatives with doors. These are favoured by supermarkets because it means customers are able to grab products quickly. However, they have been criticised by campaigners and MPs as a “massive waste of energy and money” which are contributing to global warming. A study carried out with the support of the Department for Environment, Food and Rural Affairs found that “retail food outlets are responsible for around three per cent of total electrical energy consumption”. It added that “refrigeration systems account for between 30 per cent and 60 per cent of energy used.” Mary Creagh MP, who is the chair of the Environmental Audit Committee, told The Telegraph: “It’s a terrible waste of money and some stores have introduced closing doors.
Telegraph 28th July 2019 read more »
Leading architects and engineers are calling for all-glass skyscrapers to be banned because they are too difficult and expensive to cool. “If you’re building a greenhouse in a climate emergency, it’s a pretty odd thing to do to say the least,” said Simon Sturgis, an adviser to the government and the Greater London Authority, as well as chairman of the Royal Institute of British Architects sustainability group. “If you’re using standard glass facades you need a lot of energy to cool them down, and using a lot of energy equates to a lot of carbon emissions.” Glass-fronted offices, from high- profile buildings like the Shard to shopping centres and industrial parks, have become popular with architects and their clients because they create an arresting view in a city skyline, let in lots of natural light and provide great views for those inside. But the sunlight also brings heat, and in sealed buildings there is nowhere for it to escape to naturally – something which, as Britain sweltered in a record-breaking heatwave last week, will have become apparent to many working inside them. To avoid this greenhouse effect, air conditioning has been the standard solution. But that is problematic in itself. The International Energy Agency estimates that about 40% of global carbon dioxide emissions come from constructing, heating, cooling and demolishing buildings. Air conditioning is a growing proportion of this: energy used on cooling has doubled since 2000 and accounts for about 14% of all energy use now.
Guardian 28th July 2019 read more »