Honestly, how can we know what is caused by the sun anymore?
HAARP can cause electrical disturbances and earthquakes. Ionospheric heaters can heat regions of the earth, making conditions worst. Seriously all the sun has to do is go through its usual 11 year cycle and then those sun worshipers can blame the sun.
BTW Sun2, God gave us the sun before he gave us his Son. God's Son is not the solar deity that certain religions have made him out to be.