Renewable energy (Risako)

In Vancouver, we have a lot of kinds of weather. Sometimes it is too hot or too cold. It can be watched in all over the world, not only in Vancouver. One of causes of these violent weather changes is global warming. Global warming is the terrible matter for human. For example, temperature is becoming higher and higher, and snow of the mountain top is melting, because of global warming. CO2 is the one of the biggest factors of global warming, and using a lot of energy causes CO2 that can contain heat easily and make global warming to be worse. People have to save the energy and CO2, and try to solve this problem as soon as possible. There are two good solutions of global warming. First is using renewable energy, and second is thinking how to use some energy. These two solutions could improve temperature condition.

Renewable energy is energy that can be taken many times. It has no limitation, and using it doesn’t exhaust so much CO2 compare with using usual energy. Solar energy, wind energy, and water energy are renewable energy. Some country has already started to use this renewable energy, but not so many amounts. In fact, using renewable energy has a few problems. For example setting a solar panel takes a lot of money, and constructing a dam sometimes causes a flood. However, we can improve the way of taking energy from renewable energy in the future to solve these problems. Some scientists have already started to improve the way of taking renewable energy. Human should do it. In addition to this, people have to think not only how to get, but also how to use some energy. Many productions that surround people cannot existence without energy. Most of them made by robots in a factory and robots use a lot of energy. Bringing these products to markets also use gasoline because of truck. Saving products also means saving energy too. People should not waste products even if that is a very tiny thing.

Now, renewable energy is not so major, and many people waste a lot of products because most of them don’t think so deeply about energy when they throw it away. However, in the near future, people notice how serious the global warming problems are and try to change their way of thinking, try to use renewable energy instead of gasoline, fissile and the other not renewable energy. It may become a key to solve the global warming. Human have to do something for earth as soon as possible.