According to some scientists, which is a cause of global warming?

Changes in solar energy i got a 100%

Most climate scientists agree the main cause of the current global warming trend is human expansion of the "greenhouse effect" - warming that results when the atmosphere traps heat radiating from Earth toward space. Life on Earth depends on energy coming from the Sun. About half the light reaching Earth's atmosphere passes through the air and clouds to the surface, where it is absorbed and then radiated upward in the form of infrared heat.