Take a look at the first two examples Reuters uses to claim it's been "a rough year or so" for scientists concerned about global warming -- bizarrely, both are incidents in which the scientists have been vindicated:
It's been a rough year or so for scientists and others who say that data shows human activities, especially the burning of fossil fuels, accelerate the climate-warming greenhouse effect. Climate skeptics are quick to point this out. To wit:
-- Skeptics allege scientists manipulated climate research, citing the so-called "climategate" scandal of December 2009, in which leaked e-mails from scientists at the University of East Anglia's Climatic Research Unit in Britain appeared to show scientists sniping at climate deniers and trying to block publication of articles critical of their findings.
At least four reviews of the case have exonerated the climate scientists but skeptics maintain it cast doubt on all climate research that showed a consistent warming trend.
-- In 2010, the U.N. Intergovernmental Panel on Climate Change had to correct a 2007 report used by government policymakers that exaggerated the melt of Himalayan glaciers by saying they might all vanish by 2035. Since then, however, independent reviews have reaffirmed the panel's main conclusion that it is at least 90 percent certain that human activities are the main cause of global warming in the past 50 years. [Emphasis added]
So, in the first example, global warming deniers attacked scientists -- but at least four separate reviews exonerated the scientists. And in the second example, independent reviews reaffirmed the conclusion that human activities are the main cause of global warming.
To Reuters, these developments are the lead examples of it having been "rough year or so" for climate scientists. A more rational assessment would be that these are examples of it having been a rough year for the special interests attempting to undermine climate science.