I am going to write a bout solar storms in s different way,the first one is in direct approach ,and the other is in indirect approach .

Solar storm
The next storm is in 2012 expected to be 30-50 % stronger than the previous one. Damages on power grid and communications systems could be catastrophic. Disabling satellite, threaten astronaut safety and even disrupt communication on Earth .
Solar storms happens because of sun's conveyor belt, since it's current of electrically-conducting gas, it flows in a loop from the sun's equator to the poles and back again. Just as the Great Ocean Conveyor Belt controls weather on Earth, this solar conveyor belt controls weather on the sun. Specifically, it controls the sunspot cycle.
Back in 1895 , a solar storm hit the Earth, it was the largest geomagnetic storm. It caused a lot of damages back then when they only have telegraph wires. If this storm hit us today, the damages are estimated to be in trillion of dollars .





Solar storm .
Our own sun have a temper tantrum that would unleash a tsunami of radiations to the outer space, and may wipe out space satellite, power lines, and may leave entire continents without power .
At every 11 years the sun flips with respect to its magnetic field, the North become South and the South become North, releasing a burst of radiations to the outer space, including the Earth. In 1859, a solar storm hit the Earth, it was the largest geomagnetic storm. It caused a lot of damages back then when they only have telegraph wires. If this storm hit us today, the damages are estimated to be in trillion of dollars .
The next storm is in 2012 expected to be 30-50 % stronger than the previous one. The experts says the satellites, communications systems, power stations will crash down and the effects will go beyond that to cities and countries crashes.
Although this may not happen, and Earth may survive from this one, but a solar storm will hit someday, when? no one knows, so we need to prepare ourselves to deal with it, we don't need another Katrina caused of solar storm.