The reality of global warming and its catastrophic consequences are today beyond debate. But American labor is caught in an internal stalemate among those who fear job loss from efforts to deal with global warming, those who have not considered global warming an important union issue, and those who see the climate crisis as a call for immediate action and an opportunity for sustainable economic development. Labor will confront critical issues to which it must respond at the bargaining table and in the public policy arena. Indeed, organized labor plays a critical role in funding and supporting progressive political action in the United States. Resolving this conflict constructively is a crucial step in developing a new American politics that will do what is necessary to reduce greenhouse gasses – a necessity that is just as important for working people as for everybody else. GLS begins a series of blogs to help frame a new debate on labor's role in the climate change debate.