Why almost all coal was made at the same time

You can donate to #teamtrees by going to or click the donate button. 100% of the money you donate with the button goes to the Arbor Day Foundation who will be planting the trees. Most of the coal on earth was created during a single short period of geological history 300 million years ago. It's called the carboniferous period. Find out why coal production stopped so abruptly. CORRECTIONS So this video was quite rushed because I wanted to get it out in time for the #teamtrees launch.