Abstract
<jats:title>Abstract</jats:title> <jats:p>This chapter reprises a theory of climate contracts in the tradition of social and natural contract theory, with a specific focus on the role that consumers can play in advancing solutions to what scientists have called the climate emergency. Alternative approaches and strategies include consumer-produced climate information, consumer lawsuits, climate-oriented procurement policies, and various kinds of consumer climate cooperatives. Consumer-led actions in private markets can supplement public law approaches to the climate crisis, at least some of which have been slowed or stalled by recent political developments in the world seeking to maintain the status quo and dominance of the fossil-fuel economy. Individuals who act both as consumers making purchases with climate consequences in mind (consumer-citizens) and as citizens lobbying for political and legal changes to make pro-climate consumer decisions easier and more reliable (citizen-consumers) can potentially overcome collective action barriers through organised actions at the scale needed to move the needle towards achieving global climate objectives.</jats:p>