Extreme weather events are becoming more frequent – hurricanes, tornados, droughts, epic floods, and uncontrolled fires. The human and financial costs are huge. Some of the events can now be predicted. The legal risks and exposures of companies, insurers, vendors, and planners for contributing to those events, on the one hand, and not taking adequate mitigating precaution, on the other, are only beginning to be recognized. We explore the bases for those risks and suggest steps to avoid or lessen their legal implications.