I just got done reading a really good book that focuses more on Global Warming than anything but the ideas presented in the book can easily be applied to stuff like this. Its called State of Fear, by Michael Crichton and it talks about how we have been living in a perpetual state of fear for over 100 years. Eugenics, Lysenkoism, the Cold War, and now Global Warming/Global Climate change are all variations of the same thing: a perpetual state of fear used to control the population. Its actually quite unnerving to read the chilling similarities between the era of Eugenics and the current era of Global Warming. I highly recommend checking out State of Fear by Michael Crichton.
"When the search for truth is confused with political advocacy, the pursuit of knowledge is reduced to the quest for power." - Alston Chase
I'm not meaning to stir up a hornets nest here but many believe that is what the purpose of God and religion was - a way of controling the population through fear of retribution in the afterlife.