This website is a product of the Carbon Offset Research and Education (CORE) initiative of the Stockholm Environment Institute (SEI) and the Greenhouse Gas Management Institute (GHGMI). CORE was launched in 2011 to promote offset programs and policies that maximize their potential benefits, while minimizing their potential risks. Since the initiative’s founding, the CORE team has conducted cutting-edge research to inform policy makers and the general public about both voluntary and regulatory carbon offset standards and policies. is a continuation of the CORE initiative, while providing updated and innovative information about carbon offsets.