The amount of work required to push the ash cloud away turned out to be immense. It threatened to create food shortages because of the destroyed fields, and to destroy infrastructure if the fire got out of control by accident.
In other words, the plan was expensive and risky. But Precio-Us' words earlier meant that without an intervention, the ash cloud was going to hang over our heads until it all fell on them.
And unlike snow, which would eventually melt and seep into the ground, ash went nowhere.
Countless bees and humans were cleaning it daily, but the piles of it only grew higher and higher by day. Eventually, the landscape of the Central Region would become a desert with countless ash dunes moved around by wind…
These would plague our mechas for years to come!