Prosecutors say that as news of the crime spread, the two men exchanged messages relishing the outrage and sadness they caused. The tree in northern England was believed to be about 200 years old.

(Image credit: Oli Scarff)

As fire crews and air tankers work to block the wildfires' explosive growth, images of red clouds of fire retardant falling onto trees are common. What is it — and what's in it?

(Image credit: David Swanson)