The modifications to climate this fellow at your link is alluding to via radio are much more energy intensive than the power source for the facility can provide. Weather takes a lot of energy. However, early Cold War warriors stationed on the DEW line across Greenland, Canada, and Alaska operated powerful radars at microwave frequencies for the detection of Soviet ICBM launches. These armed services warriors used the microwaves a bit differently than designed. Until they were warned that the microwave frequencies "might" sterilize them or produce other harmful effects, the men sometimes would stand in front of the antennae and "warm up" in the arctic cold. Just like a microwave oven, but the intensity was not as concentrated as our ovens nor as confined by the steel and mesh cages we use. Shortly after DEW became operational, the Moon (rose)came up and radar bounced back to us from it. They did not at first realize that they were getting an echo off the Moon. Instead, the DEW personnel thought the Soviets were launching an ICBM every 2 and half seconds. It did not take long to realize it was a reflection, not all out war. Those signals, though attenuated now are traveling through space getting fainter passing a distance of roughly 50 light years, and traveling on. For climate change by radio waves, haarp is too small, too underpowered at present.