People in Britain often talk about climate and weather. They usually complain about their ___CHANGE___ weather. However, there are parts of the world where extreme weather causes real dangers to the ___POPULATE___. Sandstorms, tornadoes and floods ___REGULAR___ cause massive destruction. Lots of people become ___HOME___. To prevent this destruction, it’s important to forecast disasters in advance. Japan is the world ___LEAD___ in using new technology for this purpose. The Japanese have also worked out an ___EFFECT___ system of informing people: phone companies automatically notify their customers about emergencies and disasters. These warnings are very efficient, and free of charge.