Original sentence: According to OfCom the program caused no harm because "the discussion about the causes of global warming was to a very great extent settled by the date of broadcast, meaning that climate change was no longer a matter of political controversy
Edited sentence: According to OfCom, the reason the program was not deemed to have caused harm, however, was not that it was accurate but that it was so blatantly outside of what is not scientifically established: the program caused no harm because "the discussion about the causes of global warming was to a very great extent settled by the date of broadcast, meaning that climate change was no longer a matter of political controversy