ice age

Ice ages have been linked to the Earth’s wobbly orbit – but when is the next one?

Ice ages have been linked to the Earth’s wobbly orbit – but when is the next one?

Over the last two and a half million years the Earth has undergone more than 50 major ice ages, each having a profound effect on our planet’s climate. But what causes them and how do we predict when the next big ice age will hit?