Sacyr's Blog

Pompeii was buried by the eruption of Mount Vesuvius and for centuries slept under a blanket of ash and pumice some six metres deep. We discuss how this priceless archaeological treasure was built from stones from nearby quarries, rubbish and reused materials.

Facial recognition company Clearview AI, which hopes to be able to identify "almost everyone in the world" by 2023, has offered its services free of charge to Ukraine in the face of the Russian invasion. This is how the Ukrainian Ministry of Defence uses this technology and some of the risks involved.

170 kilometres long and 500 metres high—these are the mind-blowing dimensions of the enormous skyscraper that Saudi Arabia plans to build to give shape to a futuristic city called The Line. But to successfully construct this city without cars, pollution or accidents, it will have to overcome arduous challenges.

Faced with heavy dependence on Russian natural gas and unprecedented price rises, the EU is aiming to cut gas consumption by 15% over the next eight months. To achieve this, some countries have opted for common-sense measures, such as limiting the use of air conditioning and heating, and other much more surprising ones, such as turning off traffic lights at night or allowing only cold showers in public gyms.