A breakthrough deal to attempt to limit global temperature rises was agreed at a conference of world nations in December 2015. These charts from the time show how and why the Earth’s climate is ...

The Earth is always spinning on an imaginary line called an axis. This line goes through the North and South poles. We call this spinning, rotation, and it takes about 24 hours for the Earth to make ...

This three-minute video explains Holocaust denial and the different forms it takes. Transcript Holocaust denial is a form of antisemitism. The only reason to deny the Holocaust is to inculcate and ...