‘It’s a big lever for change’: the radical contract protecting Hamburg’s green space

Citizen power forced Germany’s greenest city-state into a binding agreement balancing housing and nature

When Fritz Schumacher laid out his vision for Hamburg a century ago, the sketch looked more like a fern than a town plan. Fronds of urban development radiated from the centre to tickle the countryside, bristling with dense rows of housing. The white spaces in between were to be filled with parks and playgrounds.

Schumacher was Hamburg’s chief building officer in the early 20th century, and a pioneer of green cities with widespread access to nature. “Building sites emerge even if you don’t invest in them,” he warned in 1932. “Public spaces disappear if you don’t invest in them.”

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‘You basically have free hot water’: how Cyprus became a world leader in solar heating

The country, which has more 300 days of sunshine a year, has embraced rooftop systems that harness the sun’s energy

The Thriamvos company truck pulls up at noon outside the four-storey building in the heart of Nicosia.

It’s the third rooftop installation of a solar-powered water heating system that Petros Mihali and his assistant, Soteris, have made in the Cypriot capital since their working day began at 7am.

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How retrofitting the UK’s old buildings can generate an extra £35bn in new money

Heritage and property groups outline plan to boost energy efficiency at historical sites to create jobs, cut emissions and meet net-zero targets

Retrofitting the UK’s historicsl buildings, from Georgian townhouses to the mills and factories that kickstarted the Industrial Revolution, could generate £35bn of economic output a year, create jobs and play a crucial role in achieving climate targets, research has found.

Improving the energy efficiency of historical properties – those built before 1919 – could reduce carbon emissions from the UK’s buildings by 5% each year and make older homes warmer and cheaper to run, according to a report commissioned by the National Trust, Historic England and leading property organisations.

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EU urged to rachet up green energy standards for buildings

Call comes after ambitious early draft of EU energy performance in buildings directive ran into opposition

The EU executive is under pressure to ratchet up green energy standards for buildings, as it prepares a further batch of legislation to tackle the climate emergency.

The European Commission is expected to propose mandatory energy efficiency upgrades for buildings in the EU in legislative proposals published on Wednesday, but MEPs and Green NGOs fear they will not be strict enough.

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Isn’t it good, Swedish plywood: the miraculous eco-town with a 20-storey wooden skyscraper

Skellefteå has wooden schools, bridges, even car parks. And now it has one of the world’s tallest wooden buildings. We visit Sweden to see what a climate-conscious future looks like

As you come in to land at Skellefteå airport in the far north of Sweden, you are greeted by a wooden air traffic control tower poking up from an endless forest of pine and spruce. After boarding a biogas bus into town, you glide past wooden apartment blocks and wooden schools, cross a wooden road bridge and pass a wooden multistorey car park, before finally reaching the centre, now home to one of the tallest new wooden buildings in the world.

“We are not the wood Taliban,” says Bo Wikström, from Skellefteå’s tourism agency, as he leads a group of visitors on a “wood safari” of its buildings. “Other materials are allowed.” But why build in anything else – when you’re surrounded by 480,000 hectares of forest?

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