By ESPNSTAR.com staff
The Spaniard wrapped up the title after finishing second at the Australian Prix Grand at Phillip Island - his closest rival in the championship Repsol Honda's Dani Pedrosa crashed out on lap two.
Lorenzo himself was forced out of the Phillip Island race last year when he crashed in the warm-up, losing a part of his finger in the process.
"Last year here was one of the worst moments in my career, the most scary one," Lorenzo said in the Herald Sun.
"But then one year later I could celebrate the second world title in MotoGP.
"This year has been even tougher than the first try to win the world title in 2010, because I knew the competitors were stronger."
Home favourite Casey Stoner finished ahead of Lorenzo in Sunday's race to take the Australian Grand Prix while Britain's Cal Crutchlow finished third.