When you're "conscious" of a problem, it means that you know about the problem and think about it when you're making decisions. Things that people often say they are "conscious" of are:
- the environment ("environmentally conscious")
- problems with society ("socially conscious")
- their health ("health-conscious")
When you are "environmentally conscious", it means that you are a person who thinks about protecting the environment. Environmentally conscious people support recycling, limiting carbon dioxide emissions, protecting endangered animals, and so on.