Global warming has caused changing weather patterns, ensuring that weather phenomena have become extreme (IPCC, 2007). Of recent concern is the increase in the number and intensity of storm weather reports. Where there is usually wet weather, the storms have increased in intensity and rainfall amount, causing floods and violent thunderstorms. Also, in areas where there is drought, these drought conditions have become prolonged. In some parts of the world, the violence of thunderstorms has increased by a staggering 100% (Environmental Graffiti, 2012). In addition, the heating up of oceans has seen the rise of violent hurricanes and cyclones (National Geographic, 2012).