Legend has it, that huge events on the sun caused mass die offs in the past, but this is hard to substantiate. For the current era, the danger lies in our technology that is vulnerable to such events. CMEs and like events can cause not only electric grid failure, but also fires due to pipeline ruptures that can end up having a devastating effect on the wild where most of the length of the pipeline is located. With the failure of the electric grid and communication, these issues will be left undressed and can wind up affecting forests and wild life negatively. Oil will also spill into the water ways and we all know what effect that has. Without the technological grids, by and large, nature should be able to withstand most solar flare events, provided that the geomagnetosphere is intact. At this time, it is undergoing change, leaving open spots on the earth and life there can be negatively impacted. The worst region right now is in the south Atlantic off the east coast of S. America. There are other zones too and some are growing as the geomagetosphere undergoes reversal.