Will HAARP-like research project affect HF propagation?

[n2ize]

Don't forget the gazillion watts produced by the radio and television transmitters, police fire and other users of the spectrum, GSM data providers etc etc.
And add the radiation recieved from outer space satellites etc.
Now, where did i leave the alu foil? ;)

Of course lets not forget the sun. And tinfoil hats reflect solar radiation.