evidence: CLARIFICATION: We've amended this story and headline as the original claimed the sun's inactivity could be lead to earthquakes, freezing weather and famine. While the sun is entering a period of decreased activity there is no firm proof this could happen. Experts say the sun's quiet phase is part of a natural 11-year cycle. It's not just the world that's gone into lockdown, the sun's activity has also fallen and one astronomer is warning 'it's a deep one'. [...] However don't panic-buy thermals just yet. Other scientists say this period of inactivity is typical of the sun's 11-year cycle - and it's affects will be small compared to global warming.