On JW.org they have an Awake article posted entitled, Doomsday - Fact, Fiction and Fantasy.
They go on to list a few doomsday fears that some people have, namely: Supervolcanoes, Asteroids, Climate Change, Disease Pandemic, Extinction of Critical Species and of course, Nuclear War.
Each of the preceding fears was given a paragraph or two explaining the impact of such scenerios and the devastation it could bring.
Now that they've got us all worried about our bees fleeing our bee hives as the asteroid makes impact on a supervolcano, causing an eruption which warms the earth's climate thus giving rise to deadly diseases...all the while some nut in a third world country has developed a nuclear weapon...
...They seek to reassure you: Doomsday May Not Be What You Think
Oh, well... that's good. I was starting to worry there for a minute...
What reassurance could these prophets of God give me?
"In contrast, the Bible’s version of what the future holds paints a more reasonable picture. According to the Bible, for a certainty, a great change is coming. But survival is guaranteed to all who do God’s will. Furthermore, the Bible does not foretell that the earth will be blasted to a cinder or frozen like an ice cube. It will be transformed into a global paradise."
Um, wait a sec... A 'reasonable picture'? I remember 'pictures' of what the WT version of doomsday is. Isn't that what all those illustrations of Armageddon in years and years of WT publications was all about? Doomsday for everyone not doing God's the WT's will? And that's a 'reasonable picture'? It's actually reasonable to expect that God is going to wipe clean 99.9% of the earth's population?