googling around on the subject on earth changes I came across this site: (
Great Shift/Earth Changes Newsletter
http://www.preparingforthegreatshift.org/Newsletter.htm#Newsletter#27It is there I came across what I think is a wonderful idea - when encountering negative predictions of earth changes or other disasters set your intention to Not in
MY Timeline. Go ahead and take what, if any, precautions are logical but don't feed into negative thoughtforms. This and it's sister site The Earth Energy Healing (EEH) Website
http://www.earthenergyhealing.org/index.htm ) are into earth healing projects which if they resonate with you might be a great way put use up fear and worry energy constructively instead of pushing it into the shadow where it just ferments.
I currently have an anxiety disorder so I am always looking for constructive ways to use up the energy as best that I can. Do what I can to prepare for real threats and try to work with the fear. that means exposure therapy which sucks but does reduce the fear reaction over time. feel the fear until the fear runs out. I watched a whole documentary series on WWI to work on the fear of global war thing. I also used it to focus reiki and any other healing energies I can channel to the battle sites to help any beings involved then who are willing to accept the energies including the nature spirits. Also to help transmute any remaining negativity in general. I started a series on WWII but had to stop for a while.