Brrr.....

Temperatures are due to drop well below zero Centigrade in London tonight. Not cold enough to freeze the Thames, as in this painting of 1677, but still parky for these parts. We are used to being kept warm by the jets taking off overhead.

1677 was during the period of the so-called Little Ice Age, which brought very cold temperatures to Early Modern Europe. The Thames regularly froze over , and "frost fairs" were held on the ice.

During the Great Freeze of 1683-4 , the diarist John Evelyn wrote that 'Streetes of Boothes were set upon the Thames... all sorts of Trades and shops furnished, & full of Commodities..." (source: Museum of London).

More seriously, many communities in northern and eastern Europe were abandoned to the advancing ice. Something to think about whilst doing your Pieter Breughel the Elder jigsaw in front of a cosy fire....