On 27 Oct, 19:08, "The Medway Handyman"
wrote:

So why did the Thames freeze over 200 years ago then?

Because.

Which has little relation to any _additional_ causes we kick into
play. One doesn't preclude the other.

One might also suggest that the absence of "little ice ages", frost
fairs etc. since we started messing with stuff would tend to support
the anthropocene hypothesis, rather than discredit it.