He also claimed several incidents since 2004 had all involved one mains pipe under the A320.

BBC: Surrey burst pipes 'risking drivers' lives'

Like many cities, Greenwich has created a geographic information system - a map that shows all the hidden bones and arteries of modern civilization: water mains, storm sewers, utility lines.

NPR: Security Officials Seek to Block Some Online Maps

Using a dedicated high-current electric circuit, like those installed for electric ovens, these can recharge the MINI E in 4.5 hours. (With an ordinary mains socket, by contrast, recharging could take all day.) For cars with smaller battery packs, like the Smart, overnight recharging from a conventional socket is possible.

ECONOMIST: Rational consumer

And he called for all payments generally to be applied across the board not just to those almost exclusively in homes without mains gas heating.

BBC: Renewable heating systems: Household grants available