Last month, when pop singer Alicia Keys protested Philip Morris International's (PMI) sponsorship of her concert in Jakarta, Indonesia, PMI was forced to pull down posters and billboards that promoted the event.

"Wal-Mart has been taking many major steps [to] go green in recent years," writes Eoin O'Carroll.

BP North America recently launched "its first full-scale lifestyle effort," to promote its new gas with "Invigorate." Unlike a traditional product launch, which "simply discusses gas," BP's "Younger for Longer" campaign will compare its new gas formula to older athletes.