![A helicopter drops water on a forest fire in Prince Albert, Saskatchewan, Canada. Reuters](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/YKMKUDGJYUQWW7QBWVIANPK4OI.jpg?smart=true&auth=02954b36f9773fc9de89bf422fd84477c8c215b7d05ba5e35531be5213515524&width=400&height=225)
A helicopter drops water on a forest fire in Prince Albert, Saskatchewan, Canada. Reuters
A helicopter drops water on a forest fire in Prince Albert, Saskatchewan, Canada. Reuters
Global warming blamed for rise in ‘zombie’ forest fires
Researchers find that fires in Canada and the US survive rain and snow to re-emerge