Till Martin is a hotel general manager from Germany. He and his family have been living in Beijing for six years. When living in Beijing, Till Martin has been actively taking actions to protect Beijing's ecological environment. He and his family often do cleaning in the nearby community and participate in tree planting activities. At work, he has been promoting the use of green products such as paper cups in the hotel. According to Till Martin, Beijing has been building a large number of parks and moving away classical engines with electrical cars. Therefore, Beijing has taken economic development into account while protecting the ecological environment. Till Martin said that although there are still many things to do in the future, Beijing's current emphasis on ecological protection is really amazing.