The article discusses how carbon dioxide can be captured from a type of power plant called integrated coal gasification combined-cycle (IGCC). By capturing CO2, the plant's efficiency can be affected. The researchers found that with 90% CO2 capture, the plant's efficiency drops by 6-7%, but with 55% capture, the drop is less than half of that. These improvements can be made without new technologies, and using advanced gas turbine and CO2 recycling methods can further enhance the system.