The simple fact that anyone who produces evidence to the contrary is automatically suspect is perhaps THE biggest problem with the entire climate change debate.
Debate? You see, that is the problem. Climate change is an event, like earthquakes, the sun rising, and cargo ships running into a pier. It is not like a gun control debate or an abortion debate where opinions matter. Climate change simply happens.
The reason people are suspect when they criticize the overwhelming evidence that exists right now is because there are substantial political and corporate interests that support framing it as uncertain or as a debate. There is also a very noisy group of lunatics who deny all evidence and make up conspiracy theories. We can't prejudge this study, but that doesn't mean that we have to accept it prior to it being thoroughly reviewed by the international scientific community--not corporations or politicians. Science self-corrects, which means that there are occasionally flawed studies and occasionally revolutionary studies. I hate to break it to you, but flawed studies outnumber revolutionary studies by orders of magnitude. This is why the scientific process is so rigorous. Science is hard.