Grassroots movements are organized efforts by ordinary citizens to bring about social or political change. They typically focus on community-based issues, mobilizing individuals to advocate for policies that reflect their collective interests. Grassroots efforts can significantly influence policy by raising awareness, organizing protests, and fostering community engagement. These movements often challenge established political structures, pushing for reforms that resonate with the wider populace, thus demonstrating the power of public participation in shaping democratic processes and outcomes.