After losing her re-election in 2002, she joined then-candidate Roh Moo-hyun's presidential campaign as his special advisor on environment.
She continued working with Roh at his transition team and Blue House until the end of his presidency in 2006.
In January 2018, the Environment Ministry created a blacklist of 24 public servants associated with the previous Park Geun-hye administration.
Kim pressured 15 executives of state-run companies to step down and be replaced by loyalists to the Moon administration.
[2] On February 9, 2021, the Seoul Central District Court sentenced Kim Eun-kyung to 2 years and six months of prison for the environment ministry blacklist case.