Roz Savage, a British environmentalist, has become the first woman to row alone across the Pacific Ocean. The 42 old Roz received a rock star welcome in Papua New Guinea after finishing a nearly 13,000-kilometre journey.Thousands turned out to welcome as she rowed her 7-metre boat named Brocade toward Madang on Friday.Several people paddled canoes alongside her as she cruised into the harbor, where well-wishers adorned her with colorful leis. Savage's trip was meant to raise awareness about climate change and plastic debris polluting the ocean. She wants people to use biodegradable trash bags and reusable grocery bags.