Are they doing it on purpose?

The perennial question in highly politicized disputes, in this case Climatism.  From Watts Up With That:

All these issues were inevitable when a political agenda coopted climate science. Two words, “skeptic” and consensus”, illustrate the difference between politics and science in climate research. All scientists are and must be skeptics, but they are troublemakers for the general public. Science is not about consensus, but it is very important in politics. As a result of these and other differences, the climate debate occurs in two different universes.

A major challenge for those fighting the manipulations of the IPCC and politicians using climate change for political platforms is that the public cannot believe that scientists would be anything less than completely open and truthful. They cannot believe that scientists would even remain silent even when science is misused. The politicians exploit this trust in science and scientists, which places science in jeopardy. It also allowed the scientific malfeasance of climate science to be carried out in the open.

Good cartoon, too.