The present paper is a commentary on very interesting papers by Thomas Dunlap, Thomas Hill, and Kimberly Smith, who take up the spiritual, ethical, and political perspectives respectively. Their accounts are described and evaluated.

Michael C. MacCracken analyses issues of contention within the climate change discussions in Washington, and stresses the need for strong leadership.

Peter Singer argues that on any plausible principle, industrialised nations should be doing much more to reduce their greenhouse gas emissions than the Kyoto Protocol requires.

Marcel Wissenburg argues that ‘global and ecological justice’ represents an informal combination of four distinct and sometimes conflicting ideas: global justice, protection of the ecology, sustainability and sustainable growth.