First of all I'd eliminate electricity related phenomena, this would narrow your search. Every electricity is producing electromagnetic waves, so you definitely need a radio receiver (no idea which). Analyzing radio data is not really easy thing, however. Good luck.
I've sent here a year or so a story from Poland, which was rejected by admin.
http://moo.pl/~tygrys/balloon/
I know everything in US is better, bigger and wiser, but cygnus baloon was launched in 2006 and reached 28 kms above groudn level. No comments.
There is laboratory proven - and efficient - technology of converting CO2 (from factories' chimneys) into metane. Technology was developed by prof. Dobieslaw Nazimek. They are trying to implement it in large scale, at the cost about USD 200M per one factory like carbon energy plant. There are 2 main problems: cleaning fumes and finding brave investor.
bullshit.
Before the attack I suffered anxiety, something strange in stomach and short periods of unconsciousness; going there and back many times a day. This state was partially controllable by me and in most cases I was successful. But those symptoms were EVERY day! After sulphur pills, I had NO symptoms at all.