The term "concerned citizens" refers to individuals who are actively involved in addressing issues that affect their community. These people take an interest in social, political or environmental matters and work towards making a positive change. They may participate in activism, advocacy, volunteer work or other forms of civic engagement to promote causes they believe in. The phrase "concerned citizens" is often used to describe individuals who are not necessarily experts on a particular issue but are nonetheless invested in its resolution and committed to making a difference.