No. 5: Mining!

All the precious things that we have mined from the earth cannot buy us back the things that were damaged by mining!

They don't mention the damages done to the environment by mining.

No. 4: Reclaiming Land!

Land reclamations of the People's Republic of China

Land reclamation

No. 3: Nuclear Weapons test

List of nuclear weapons tests

No one in their right mind would blow a nuclear device on Earth!

No. 2: Drilling for Oil and Gas in the Arctic!

This is plain stupid!This is plain stupid! 
This is plain stupid!This is plain stupid!
This is plain stupid!This is plain stupid!
This is plain stupid!This is plain stupid!
This is plain stupid!This is plain stupid!
This is plain stupid!This is plain stupid!
This is plain stupid!This is plain stupid!
This is plain stupid!This is plain stupid!
This is plain stupid!This is plain stupid!

You simply don't mix oil and water.
 

No. 1 in my list: Childbirth!

1) Trying to pull or suck the baby out!

 

Link: Car Mechanic Dreams Up a Tool to Ease Births

The Most Idiotic Thing Still Practiced!

2) Giving birth lying flat on your back!

3) Episiotomy

4) Eating too much while pregnant!

Getting your child to become

too large for the birth canal

Obstetric fistula

5) c-section