I would consider the source.. every time.. but "Hackers" and "Emails" seldom fall under the domain of proof or scientific endeavor, lol. For every extreme one way, there's another on the other side.
The delays some times caused by these distractions are the epitome of human endeavors, imo.
The facts are, Co2 has risen the last 100 years, the Ph factor of the oceans has followed in lockstep.
No unusual volcanic activity.
No major Earth crust displacement.
No extreme period of Solar activity.
I'm of the mind, 2+2= things happen for a reason. Because Co2 is a colorless gas lacking odor, it's my opinion, some folks have to be hit upside the head, to consider ramifications.
Meanwhile, extremes from both sides angle for notoriety, advantages and monetary gains. Anything being handled differently than any other issue that has and is facing mankind? Nope. So we watch as time runs.... out.