
Millions of London homes at risk of sinking in extreme heat
The sun shines brightly over homes along Keystone Crescent in London, England. Millions of homes across the city are at risk of sinking as extreme heat shifts the ground beneath them.(Getty Images)Millions of homes across London and southeast England are at risk of sinking, and it's not bad construction — it's the weather. Extreme heat is drying out the ground beneath them and with this summer's onslaught of heat waves, homeowners are starting to see the telltale signs. The United Kingdom and the rest of Western Europe just recorded the hottest summer on record. By the end of August, millions of people had suffered through their fifth heat wave of the season, with widespread drought conditions across Britain, and the country is simply not built for this type of heat.(MORE: US vs. Europe: Same heat, very different danger)The problem is deep undergroundLondon sits on clay soil that behaves almost like a sponge. When it's wet, it swells. When it's hot and dry, it shrinks. That back-and-forth is normal — but when the shrinking happens unevenly under a building's foundation, it slowly drags parts of the structure down while other parts stay put.
















