假定你是李华，最近你们班就低碳生活方式进行了讨论，你的美国朋友Jack来信向你询问讨论情况，请你用英语写封回信，简单参照作文地带介绍的以下讨论结果：
1. 节水节电;
2. 垃圾分类;
3. 少用纸巾，重拾手帕;
4. 步行，骑自行车或乘坐公交车。
参考词汇：低碳low carbon 纸巾tissue
注意：词数100以内(不含开头和结尾所给出的字数);可适当增加细节了，以使行文连贯;开头已为你写好，不计入总词数。
参考范文：
Dear Jack,
Thank you for your letter asking about our discussion on low carbon lifestyle. Here is something about it.
We can do a lot in our daily life to achieve the goal of living low carbon life. First, wed better turn off lights if possible and spend less time watching TV or surfing the Internet. Saving water also matters much. Besides, we should sort out the rubbish, hoping that we might recycle some, which will surely benefit us a great deal. In addition, we suggest using handkerchiefs instead of tissues so that we can prevent more trees from being cut down. More importantly, when we go out, walking, riding bikes or taking buses should be our first choice, which contributes to a cleaner world.(约120字)