Claim: Solar activity not a key cause of climate change

Climate change has not been strongly influenced by variations in heat from the sun, a new scientific study shows. The findings overturn a widely held scientific view that lengthy periods of warm and cold weather in the past might have been caused by periodic fluctuations in solar activity.

Global warming not caused by increased solar activity

A new NASA study has confirmed that it's greenhouse gases - not changes in solar activity - that are the main cause of global warming.

Sun's role in warming Earth may be overestimated

It's completely counter-intuitive, but it now seems that increased solar activity actually leads to cooling on Earth.