A consumer advocacy group has filed a lawsuit against Starbucks, saying the company’s claim that its coffee is ethically sourced is false and misleading. In the lawsuit filed on Wednesday, the National Consumers League cited media reports of abuses on farms that supply coffee and tea to Starbucks. The group said the cases cast doubt on Starbucks’ packaging, which states that the company is “committed to 100% ethical coffee sourcing”. Starbucks said Wednesday it was aware of the lawsuit and will “aggressively defend against the asserted claims”. The lawsuit was filed in Superior Court in the Di…