This report provides an analysis of the tools and tactics advocacy groups use to influence policy responses to climate change at international, regional, national and sub-national levels. More than 20 climate networks and their member organizations have contributed to the report with their experiences of advocacy on climate change. Analyses and case studies show how civil society plays key roles in pushing for new laws, programmes, policies or strategies on climate change, in holding governments to account on their commitments; in identifying the lack of joined-up government responses to climate change; and in ensuring that national policy making does not forget the poor and vulnerable.