The Soil Story, created by Kiss the Ground outlines with absolute clarity how people have upset the carbon balance by burning fossil fuels and industrial agriculture.
Kiss the Ground is a movement started in 2013. Its mission is “Inspiring participation in global regeneration, starting with soil”.
The website’s blog has some excellent infographics, such as this one on soil dynamics.
The movement has spawned a film and a book. Here is the trailer for the movie. I haven’t located the full movie yet.
Here is the website for the book.