From Daniel Yergin’s The Quest:
To demonstrate environmental sensitivity [at the negotiations for the Kyoto Protocol], the Japanese organizers turned down the heating in the conference center. But this created a new problem as Kyoto in December was cold. To compensate, the Japanese decided to distribute blankets to the delegates. But they did not have enough blankets, and so a whole separate negotiation erupted over how many blankets would be allocated to each delegation. (p. 483 harcover)
Worst choice of abstinence over resistance ever.
Maybe the cold and pre-negotiations enabled the delegates to negotiate more effectively after. The success of Kyoto was a bit of a surprise, remember.
It seems just barely possible that the whole blanket thing was a negotiating strategy, designed to make the delegates feel a bit of human sympathy for one another.
That said, it could have just been a somewhat embarrassing accident. If so, it might not have been an unfortunate one.