Former Agriculture Secretary John Block Weighs In On Renewable Diesel Fuel Posted By: Alan Watts January 12, 2023 @ 4:40 am AG Edge Former Secretary of Agriculture John Block weighs in on renewable diesel fuel. https://dehayf5mhw1h7.cloudfront.net/wp-content/uploads/sites/889/2023/01/12114007/Wireready_01-12-2023-11-40-05_A117_20230112113958842-1.mp3 click to download audio Tweet Share +1 LinkedIn Email