Since you asked
The River Thames freezing over, historically known as "frost fairs," is largely linked to the "Little Ice Age" period when colder temperatures allowed the river to freeze frequently, but due to climate change, the Thames is significantly less likely to freeze over now because of rising global temperatures, making such events extremely rare and unlikely to occur again in the future; the last time the Thames froze significantly was in 1963.
Key points about the Thames and climate change:
Past freezing events:
During the Little Ice Age (roughly 1300-1850), the Thames froze often, with historical records documenting "frost fairs" where people would gather on the ice to hold markets and festivities.
Impact of climate change:
Rising global temperatures due to climate change have drastically reduced the frequency of freezing on the Thames.
Factors contributing to less freezing:
Warmer temperatures: The overall warmer climate means the river is less likely to reach freezing temperatures.
Urban development: Modifications like the construction of embankments and changes to the river flow also play a role in preventing the Thames from freezing.
Unlikely future freezes:
With ongoing climate change, it's highly improbable that the Thames will freeze over to the extent it did during the Little Ice Age, making large-scale frost fairs a thing of the past.
Since you are interested in the Thames check out TE2100.
https://www.gov.uk/government/collections/thames-estuary-2100-te2100
