"During the last few decades, the solar activity is not increasing. It has stabilized at a high level, but the Earth's climate still shows a tendency toward increasing temperatures," Usoskin explained.
He suspects even if there were a link between the Sun's activity and global climate, other factors must have dominated during the last few decades, including the increase of greenhouse gases in the atmosphere.
"During the last few decades, the solar activity is not increasing. It has stabilized at a high level, but the Earth's climate still shows a tendency toward increasing temperatures," Usoskin explained.
He suspects even if there were a link between the Sun's activity and global climate, other factors must have dominated during the last few decades, including the increase of greenhouse gases in the atmosphere.