English words about low carbon

1. Some English words of "low carbon" are written as low carbon, while others are written as low carbon, but generally speaking, hyphens are often used. For example, the Associated Press reported on the United Nations Climate Change Conference in Copenhagen on February 7, 65438 that there was a sentence: Off-site, climate activists competed to attract people's attention to their campaigns on deforestation, clean energy and low-carbon growth. 2. Low-carbon technology, that is, low-carbon technology 3. Low-carbon development, namely low-carbon development/growth 4, namely low-carbon economy 5. Low carbon lifestyle, that is, low carbon life. Related collocation is low-carbon life 6. 6. The society that advocates low-carbon economy is a "low-carbon society". Similarly, there are "low-carbon communities", "low-carbon cities" and "low-carbon world", that is, low-carbon communities, low-carbon cities and low-carbon world.