8 February 2013, 17:26
The only real way we will get a global shift if is there is an asteroid strike. The other threats will change things temporarily and then they will go back to a new norm. Now what that is depends on how many people there are left but even then it won't be far from where it is now.
Skean Dhude
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It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change. - Charles Darwin
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It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change. - Charles Darwin