LOS ANGELES (AP) - Billionaire climate activist Tom Steyer says he will not enter the race to succeed California Sen. Barbara Boxer.

Steyer was seriously considering a 2016 bid after Boxer announced earlier this month she would step down at the end of her term.

But the Democrat says in a statement Thursday on The Huffington Post that he sees his work "at home in California," not on Capitol Hill.

Attorney General Kamala Harris - another Democrat - has entered the race and at least a dozen others are considering bids, including former Los Angeles Mayor Antonio Villaraigosa.

Steyer says he applauds those running and is confident voters will choose a senator who will serve them well.

Copyright 2015 The Associated Press.