I have probably been watching too many documentarys but they seem to have been filled with doom and gloom,everything from supervolcanoes to ele comets/asteriods,magnetic pole reversals,GW,big freeze and super viruses etc.They all seem to state that whichever disaster is their pet is now 'X' ammount of millions/thousands/tens of years overdue!Is this to create funding, attention, mischief or genuine concern for our futures?