Every 300,000 years or thereabouts, the earth's magnetic field reverses - it stops spinning and starts spinning the other way. The last time this happened was 750,000 years ago so this one is overdue. But man has seen 11 such reversals since he first made his own tools, and none of these have been linked with any mass extinctions, let alone the end of the earth. And the whole process takes about 500 years each time!
We may be at the beginning of a reversal process now - but no significant associated problem of any kind is foreseen.

But note - the spin of the earth does not change - it doesn't suddenly stop spinning one way and start spinning the other! Now there's an interesting thought!
This was the heartening news of Dame Burnell who was speaking at a conference organised by the
Scientific and Medical Network, on Patterns of Apocalyptic Thought. I shall be writing up the conference in full by the end of November at
Conscious Connection.
To be continued this week - planet alignments and impact from matter in space.