Sunspots at an all-time high

It's still a possibility - our planet is quite capable of coping with the pollution we create, and global warming is totally due to the sun being a bit more active...

Scientists based at the Institute for Astronomy in Zurich used ice cores from Greenland to construct a picture of our star's activity in the past.

They say that over the last century the number of sunspots rose at the same time that the Earth's climate became steadily warmer.

This trend is being amplified by gases from fossil fuel burning, they argue.