Keith & Tim, are you around today? I'd like your current views on the following statement:
"The rate and scale of 20th century warming has probably been unprecedented for at least the last 1,000 years"
I'm a bit nervous about this! [I think I might try and rewrite it to "The magnitude of late 20th century temperatures has probably been..."]
Defra want to use this for their briefings.
Simon -- Dr Simon Tett Managing Scientist, Data development and applications. Met Office Hadley Centre (Reading Unit)