Here are Parts 1 and 2 of the Global News investigative report. The investigation took four months, and was based on documents and analysis provided to Global by Wind Concerns Ontario. It took two years for Wind Concerns to get the documents from the Ministry of the Environment and Climate Change (MOECC) under Freedom of Information legislation.

In over half the cases in the documents, the MOECC made no response; in others there was limited response. The Ministry relied upon wind power companies “predicted modeling” to determine whether noise exceedance was possible. When actual measurements of noise were done, they were limited to a narrow range of audible noise and did not include low frequency or tonal noise.

Minister Glen Murray told the Legislature yesterday after a barrage of questions from Opposition MPPs that the Ministry will now be including “tonal” noise in its measurement; the Minister still insists there is no problem, and told Global News that he has no complaints on his desk at present — Wind Concerns Ontario documents show almost 3,200 complaints filed between 2006 and 2014.