I really cannot comment on these e-mails or the men in question, because I haven't read anything about it - but does it surprise people to learn that even scientists have an agenda?
And does that necessarily negate global warming? Break out the champagne, pop the corks, burn needless fossil fuels! Let the good times roll!
When scientists learned that cholera was not necessarily due to filthy inner city conditions, and thought that such a revelation might undermine their efforts to bring about government-funded sanitation (which was non-existent), many chose to withhold their findings. Or even spread misinformation.
I'd like to think that proper sanitation, waste removal, water filtration, etc. are still very important government services, regardless of whether or not it is only indirectly responsible for cholera and not the primary cause.