The cost of solar panels has dropped by 80 percent and the cost of wind turbines by close to one-third in the past eight years.
在过去八年中，太阳能电池板的成本下降了80%，风力涡轮机的成本下降了近三分之一。
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If tide, wind and wave power are all developed, Britain would be able to close gas, coal and nuclear power plants and export renewable power to other parts of Europe.
A strong wind of dust storms can carry heavy objects, so you should try to stay low, and close to the ground, and protect your head with your arms or a backpack.