Personally I am of the opinion that all climate changes come from haarp type activities.
The maximum instantaneous power output from HAARP is reportedly 3.6 MW. Whereas, world primary energy consumption is at a rate of about 18 Terawatts, which is 6 million times more. Also, the consumption of all that fossil fuel on a continuous basis leaves a virtually permanent residue in the atmosphere, multiplying its effect.
Now, I'm not denying that HAARP could have some effect on the weather or climate. But it's quite a stretch to say that such a relatively tiny project has such disproportionate power for evil.
"Planet X"? How many people take that fable seriously?