Soil Comparison (IMAGE) University of Washington Caption A person holds soil from a regenerative farm (blacker soil on the left) for comparison with soil from neighboring, conventional farm (right). Credit David Montgomery/University of Washington Usage Restrictions With credit License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.