Global warming is having a big impact on some of the world’s
A polar bear weighs only two-thirds of what it used to weigh 30 years ago. Now
A polar bear needs about 12,000 calories a day to stay
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In recent years, we have seen melting ice caps and
A composting (堆肥) program at The Wesley School in Los Angeles is helping students get hands-on experience and ways
The school’s composting program
The school will use the compost on plants around campus. Some will
It takes two hours for the container to be emptied and prepared to receive
As awareness of the human impact on the environment
In many cases, your choices will depend
Save water. Every drop of tap water you use consumes energy. It might just be water, but a lot of fossil fuel (矿物燃料) is consumed in processing it. You can turn the tap off while
Wear the right clothing. Your choice of clothing can make a big