Pachauri has been accused of sexual harassment. You can read about it here:
Pachauri's initial defense was to claim that he didn't do it, but that his phone was hacked. That is not entirely implausible considering the history of the CRU hack. Hence I initially withheld any commentary. The climate community I follow on twitter has also mostly been quiet on this.
Since then more news has surfaced. We have seen the content of some of the messages in the case, and more women have spoken out against Pachauri:
I don't know if he is guilty or not, but these additional reports push me towards the womens account.
I don't usually comment on gender issues, but I think it is important to publicly make it clear that sexual harassment is not OK regardless of who you are, or how much bad publicity it might give for climate science.