Be wary of
WP:CITEOVERKILL. Having more than 2 citations at the end of a sentence shouldn't be necessary. If it is, I'd advocate breaking the sentence up.
Random quotes that are not attributed to an individual are a no-no. Unless you saying saying that a specific person or entity said something, it shouldn't be a quote.
For example: It turned out to be the "biggest fire in the regions history". is not good. However, if you were to say: Speaking at a press conference President Obama said was the "worst fire the region had seen in 50 years". that would be different. There has to be a reason you are quoting the person however. Otherwise just make it a statement and don't quote it.
That being said you have 3 big block quotes in the article that I really don't think belong there. Merge them into the article better. Not as block quotes.
Lede
Terms such as "catastrophic" are not encyclopedic and should be removed
There is no need to directly quote an article: "... become the first bird in at least 200 years to become extinct in Western Australia". Turn this into a prose statement.
Additionally "prompting discussion"?? Discussion by who? In what forum was it being discussed?
"Reportedly up to 90%" is not an encyclopedic statement
Make sure all numeric values are using the {{convert}} template. This includes temperatures.
Be careful about getting to detailed about the numbers. This isn't a science paper. Knowing that the temperature was "+1.78 °C" is unnecessary. If you MUST include the temperature, I would say "it was roughly 2 °C warmer than usual" (for example).