Dear John,
Thank you for your letter regarding our discussion on low-carbon lifestyles.Here is a basic summary of what we talked about:
After realizing the importance of a low-carbon lifestyle,we came up with four main methods to maintain low levels of carbon.
1.We should save water and electricity.
2.We should properly dispose of waste.
3.We should use less disposable products and more reusable ones,such as handkerchiefs instead of tissues.
4.Finally,we should reduce our use of private cars and opt instead for public transportation in order to reduce emissions and decrease traffic congestion.
If these four points are met,the Earth will be a better place for everyone to live in.Only by taking these steps can we ensure a greener,more beautiful Earth for the future.
我帮你加了不少内容,若需要翻译,
还有,handkerchiefs and tissues 这个例子不是很好;最好是plastic water bottles and reusable bottles 之类的对比.
:)