Volunteers hold a banner near the Great Wall during a snowfall on the outskirts of Beijing November 12, 2009. The organizer Oxfam Hong Kong, an international NGO, held the activity to call on U.S. President Barack Obama, who will visit China next week, to keep his public promises and ensure that the U.S. plays a key leadership role in the climate negotiations culminating at the UN Climate Change Conference in Copenhagen in December. The Chinese characters on the banner reads "Against Climate Change for Poverty People".[Agencies]