From Futurism:
One example of how that stellar fury affects the Earth, apart from triggering gorgeous auroras in the night sky: farmers say the barrage of solar particles has wreaked havoc on their high-tech agricultural equipment.
The issue is that modern tractors are highly dependent on GPS, which is provided by sensitive satellites in our planet’s orbit. One extreme solar storm in May, they say, threw off equipment when planting season was already in full swing. “Our tractors acted like they were demon possessed,” aurora chaser Elaine Ramstad told SpaceWeather.com. “All my cousins called me during the May 10th storm to tell me that ‘my auroras’ were driving them crazy while they were planting.”