Each year over 3.5 million tourists from all over the world visit Pompeii to admire the ruins left by the eruption of the Vesuvius that, in 79 AD, engulfed it together with the nearby city of Herculaneum.

In the city, the famous Cabanyal district which had been home to a local fishing community for a long time, has recently been transformed into a testing ground for numerous energy efficiency techniques.

Maguy Soldevila is a former art teacher. Some years ago, she quit the frenzy and the pollution of the French city of Lyon to move into a typical house of the 1960s, in the small village of Sail-sous-Couzan.

Cities, with their concentration of services, economic opportunity, mobility and social interaction, have proved endlessly attractive to humans.

Today´s liberalised markets are focused on short-term return on capital, but energy infrastructure planning should be driven by the objective of climate protection.

Door locks that open with fingerprints, networked security cameras, smart light bulbs, smart washing machines: technology is transforming our homes, turning the tech dreams of yesterday into the reality of today.

Building with wood, straw, and hemp. Biobased materials are seeing ever more use in the construction sector, which needs to become more sustainable as it is one of the major sources of soil, air and water pollution.

Thirty-one apartment buildings comprising 140,000 m 2 of floor space: Europe’s most ambitious energy-saving renovation project is transforming Torrelago, a residential district of Valladolid in central Spain.

  In the suburbs of Valladolid, a city in central Spain, a district is at the forefront of Europe's energy transition.

Spain is known as a land of sun and heat. But even here there are regions that have to face icy winter temperatures. In Valladolid , in the north of the country, many of the almost 300,000 inhabitants are in poorly isolated buildings built in the 1960s.

From 21 to 25  May the EU Green Week is exploring ways to accelerate sustainable urban transformation.

Local governments in Europe are notoriously risk averse, city council officials and industry leaders won’t hesitate to tell you.

When temperatures are low, the temptation to take long, scalding showers and turn electric heaters to the maximum is high. And not knowing how much energy we spend, when we unthinkingly do these activities, makes it difficult for us to decrease our consumption.

Home sweet home. Houses are supposed to be our nest, a shelter from the world outside. But how healthy are European homes? Nowadays most of our time is spent indoors, often at home, one reason being the current shift to “desk jobs”.

From the frosty reaches of Umeå in eastern Sweden to the rolling hills of San Sebastian in Spain’s Basque Country, European cities have one refrain on their minds as the cold sets in: winter is coming and homes must be heated in a way that allows the EU to reach its goal of reducing energy consumption by 20% by the year 2020 .

Energy consumption in the construction sector is a key issue in the fight against climate change. It is often approached when planning new buildings, but there is little tendency to renovate the existing stock .

This year’s EU Green Week is clear in its focus: “green jobs for a greener future.” It’s highlighting how environmental policies are helping to create new work opportunities and a demand for new types of competences.

Smart buildings appear to respond to a range of energy challenges found in Europe today. Improved efficiency would help consumers reduce income spent on energy consumption, reduce greenhouse emissions and also help EU countries meet the goals of the 2030 energy strategy .

Buildings account for 36% of CO 2 emissions in Europe, and energy consumption in this sector has increased in recent decades.

Today, one of the new challenges for the construction industry is the use of textiles, coming from the clothing and footwear industries.