The international challenge to take eco-friendly engineering and architecture to another level has begun, a goal that the whole world is watching closely. The first building to take on this seemingly impossible green challenge of zero carbon emissions is Chinese.Located in the heart of Beijing’s Central Business District, the Z6 tower, designed by Foster + Partners, has become China’s first high-rise office building to achieve “Net Zero Carbon Outstanding” certification. The project received this recognition by passing the “Net Zero Carbon Building Evaluation System,” which was developed by the British Research Establishment (BRE) and TÜV Rheinland Greater China, based on BREEAM standards. The Z6 tower achieves a 47% reduction in operational carbon emissions due to its unique mechanical systems, smart building controls, energy feedback elevators, and on-site renewables. The plan is actually to offset the remaining 53% of emissions using off-site renewables after the building’s completion.The building prioritizes greenery, natural ventilation, and daylight. The atrium facades incorporate a natural ventilation system, allowing hot air to rise and exit the building. Additionally, external terraces provide direct pathways to the adjacent park. Each 20-meter-high atrium is designed to bring daylight into the 18-meter office spaces, enhancing efficiency and promoting well-being with natural ventilation. The Z6 Tower also aims for full building lifecycle net zero carbon by offsetting embodied carbon upon completion, The project aspires to earn the highest Chinese Green Building three-star rating, along with international LEED Gold and WELL Platinum certifications.