Freshly plucked tea leaves are seen in the hand of a tea garden worker inside Aideobarie Tea Estate in Jorhat in Assam, India, April 21, 2015. Unrest is brewing among Assam's so-called Tea Tribes as changing weather patterns upset the economics of the industry. Scientists say climate change is to blame for uneven rainfall that is cutting yields and lifting costs for tea firms. Picture taken April 21, 2015. REUTERS/Ahmad Masood