This is about to be quite possibly the weirdest request I've posted online, but I thought I'd reach out to you all, as I'm sure there are some sci-fi lovers out there.
Dilemma: I'm writing some original fiction and I need to "invent" devices that change weather and climate patterns planet-wide. Now, this isn't Earth, so I don't need the device to be compatible with our planet. This planet, however, has a similar makeup to Earth. Humanoids exist on it.
This is also soft sci-fi, so I don't need extreme scientific accuracy with these devices.
What I'm looking for:
These devices will bore into the ground and continue through the many layers until hitting the core. My unofficial name for these devices is "Weather Rods," so they'll be rod-like in their design. They're operated by a race of superhumans (hence the soft sci-fi), so they work without hard technology (basically, they operate on magic, I guess). The rods shift the weather/climate so that the "superhuman" part of the planet is green and fertile, and the race they are controlling is stuck in a wasteland.
I also want these devices to be gravely endangering the planet to the point where there are major lava floes on the surface that divide the planet into sections and make travel over the lava nigh impossible. The rods are also making the planet structurally unstable, obviously huge problems with plate tectonics exist.
Sorry for the long and weird post, but if anyone has any ideas of how to explain the devices and the damage that they're doing, I would greatly appreciate it. You can PM me if you want, too.