Identify an environmental problem reported in newspapers

Yes I saw one today, on the anniversary of a devastating forest fire at Fort McMurray in northern Canada (Alberta at the Tar Sands) which happened one year ago and destroyed many homes just burnt them up and displaced the residents. It appears that the frequency of such fires is increasing with global warming as at least the boreal forests in Canada near cities or towns are becoming drier and more susceptible to becoming ignited. A similar one happened in 2003 in Kelowna, British Columbia during a particularly dry summer. 

B. would complete your answer. give me brainliest!