The trends range from the spread of avian flu to the rise of carbon emissions to the number of violent conflicts. The growing use of wind power is among the few trends seen as positive.

• 这些趋势包括禽流感的蔓延、二氧化碳排放量的增加、以及暴力冲突的增加等。风能使用的日益增多是仅有的几大积极趋势之一。