At first glance, the heart of Denmark’s capital city resembles every other buzzing metropolis: tourists tirelessly shoot pictures, harried workers dash between buildings; families enjoy picnics on handy benches; trash is thrown into Copenhagen’s iconic green garbage bins; and lines of cars snake their way along the main thoroughfares. Underneath the ordinary progression of life, however, hums a large infrastructure of new technology, all with the purpose of saving energy by making the city infrastructure more operationally efficient and helping people live cleaner lives. Denmark is coming up against the limits of what it can achieve opportunistically Echo sensors hiding in trash bins around City Hall let the public waste co ...
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District heating, which combines the production of power with the communal provision of heat along networks of underground pipes, has long been recognised as a more environmentally friendly and cheaper way of heating buildings than doing so individually. But it has taken 100 years for district cooling to gain a serious foothold, despite having the same advantages as district heating
Heavier cloudbursts, rising sea levels, more flooding. This is the outlook for many urban areas. City councils, architects and engineers are responding to the challenges of a wetter future by looking at ways to adapt the urban landscape rather than expanding traditional underground drainage solutions. The approach saves money and creates better urban spaces.
Treating wastewater (a euphemistic term for processing sewage) is costly. It is highly energy intensive and for local authorities can often be the main guzzler of electricity. With a new approach, however, all that can change.