Definition. Thoracic surgery is the repair of organs located in the thorax, or chest. The thoracic cavity lies between the neck and the diaphragm, and contains the heart and lungs (cardiopulmonary system), the esophagus, trachea, pleura, mediastinum, chest wall, and diaphragm.
If youâre reading this, chances are you switched on a light. But for the 1.3 billion people around the world who lack access to electricity, darkness is a reality. There is no electric light for children to do their homework by, no power to run refrigerators that keep perishables or needed medicine cold, no power for cooking stoves or microwaves.
1 The world has work to do to meet Sustainable Energy for Allâs goals of reaching 100 percent access to modern energy, doubling renewable energy, and doubling improvement in energy efficiency by 2030. 2  1.2 billion people still lack access to electricity, and 2.8 billion donât have access to modern household fuels.