homepage - goals - limiting greenhouse emissions
To avoid climate catastrophe, greenhouse gas emissions in the U.S. must peak in the coming decade, decline steadily, and reach a level close to zero by mid-century. In addition to reducing our own emissions, the U.S. should help developing countries cut carbon and protect themselves from the effects of global warming.

Our Program
The Sierra Club's Initiative to Limit Total Greenhouse Emissions is focused on achieving two primary outcomes in the next four years:
- Working with the next Congress and president to pass federal legislation that curbs U.S. greenhouse gas emissions 80% by 2050, puts a price on carbon in order to internalize the cost of climate change into markets and policies, and enhances our use of clean energy sources.
- Creating the domestic conditions needed for the U.S. to lead in negotiating and implementing an international climate treaty sufficient to reduce greenhouse gas emissions to levels called for by climate scientists.
We have a choice to make. And that choice - for the sake of our economy, the environment, and our communities - must be for sustainable and efficient energy production and usage. Making this change will require continued scientific research, policy development, and public education and media exposure. It also requires another crucial step: a full-scale mobilization of public support for real action on global warming.
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