What will the microwave discard do to the earth in the movie core?

In the movie "The Core," the microwave discard refers to a catastrophic event caused by the disruption of the Earth's core. This disruption leads to severe electromagnetic disturbances, resulting in devastating effects such as increased natural disasters, disruptions in communication systems, and a breakdown of the planet's protective magnetic field. Ultimately, these consequences threaten life on Earth, showcasing the dire need to address the core's instability.