ATLANTA -- Evander Holyfield has no intention of hanging up his gloves. In fact, he'll have a new nickname the next time he climbs into the ring.

Refusing to give up on his goal of retiring as heavyweight champion even as he approaches his 47th birthday, Holyfield said he'll travel to South Korea in November for his next bout -- he's not even sure of the opponent -- and bring along a message of preserving the environment.

[+] EnlargeAP Photo/Philip Scott Andrews"I guess I'm lean and green," Evander Holyfield said, announcing his intentions to become a champion for the environment.

"I guess I'm lean and green," Holyfield said in a telephone interview with The Associated Press. "I'm pretty much going to do all I can to fight against global warming. I'll see what I can do to help and try to help other people who want to do the same thing."

He plans a formal announcement Friday about his environmental partnership, which includes building a 40-acre solar energy farm on his suburban Atlanta estate and turning another acre into an organic garden that can be used by neighborhood youths.