Planet Earth

Does smoking cause air pollution? © iStock

Does smoking cause air pollution?

If a virus killed half the world, would this prevent climate change? © iStock

If a virus killed half the world, would this prevent climate change?

How long would a pebble take to reach the bottom of the Mariana Trench? © Getty Images

How long would a pebble take to reach the bottom of the Mariana Trench?

Why don't we weigh more at the poles than we do at the equator? © Getty Images

Why don’t we weigh more at the poles than we do at the equator?

Who named Earth? © Getty Images

Who named Earth?

Would it be possible to surf a tidal wave? © Getty Images

Would it be possible to surf a tidal wave?

'A Frost Fair on the Thames at Temple Stairs', c1684 © Museum of London/Heritage Images/Getty Images)

What caused the Mini-Ice Age?

What would happen if the Earth's poles flipped over? © iStock

What would happen if the Earth’s poles flipped over?

Could life survive if the atmosphere disappeared? © Getty Images

Could life survive if the atmosphere disappeared?

Has all of the Earth been mapped? © Getty Images

Has all of the Earth been mapped?

Is there an easy way to prove the Earth is round? © Getty Images

Is there an easy way to prove the Earth is round?

What effect does carbon capture have on atmospheric oxygen? © Getty Images

What effect does carbon capture have on atmospheric oxygen?

The climate gamble © ikon

The climate gamble