Here’s a paragraph from USAF about the project:
Power for the HAARP HF transmitter is equivalent to that obtained from three or four generators of diesel-locomotive size. The transmitter’s narrow radiating beam is upward pointing and illuminates a relatively small volume in space, producing effects so weak that extremely sensitive diagnostic instruments are required to detect and measure them.
All of the terrible things listed by Ms Gainer would, if even possible, require orders of magnitude more power over long timespans. Thus, climate change is still quite real despite the easy deflection offered by the poster.