Josh Harnett was in London yesterday meeting with none other than Tony Blair.
The �Lucky Number Slevin�, actor met with the prime-minister to discuss Climate Change on behalf of the charity �Global Cool�.
Other big names who met the PM on behalf of �Global Cool� included; Stephen Fry, Brian May, Alan Yentob, K T Tunstall and Perry Farrell.
Josh also has another reason to be in London.
The heart-throb has taken quite a shine to Sienna Miller it seems and even went as far a booking a table for him and the blonde at London�s famed �The Ivy�.
However, according to the Daily Mirror, the actor is still heartbroken over his split form Scarlett Johansson�.
Better stick to poltics than women for now Josh...























