This book will survey past and present efforts to democratize international institutions, and will advance the argument that a new degree of transparency and accountability on a global scale is necessary to address the threat of climate change. The volume will analyse how global governance could become more democratic and consequently more responsive to the challenge of climate change. As economic globalization has accelerated since 1945, international institutions have done a remarkable job in facilitating global communication and commerce but have been far less effective in protecting the global commons.