Global (全球的) warming is becoming a more serious problem and it makes the Earth sick. There are many (原因) of the greenhouse effect(温室效应). But (幸运地), there are many ways to save our beautiful planet and keep it (健康的) and green.
First, we should use energy more wisely. Summer is coming and as (温度) go up, many people turn on air conditioning. However, using too much air conditioning is not good for our (环境). So remember to turn off air conditioning while you are sleeping at night or if you are away (在…期间) the day.
It's also helpful to recycle things. (选择) reusable products to reduce waste. Recycling paper, glass, cans, (塑料), and newspaper is also important for saving energy.
Try to use less hot water. Wash clothes with cool water to save energy.
Trees and flowers help keep the air clean and (新鲜) by giving off oxygen(氧气) which is necessary for us to live. So, why not (种植) more plants?
