Over the past 60 years, the average weight of harvesters has increased 10-fold with a major impact on soil ecosystem functions. Photo: Dan Davison Attribution 2.0 Generic (CC BY 2.0)

Mechanical dinosaurs are the ultimate threat to soil

The weight of harvesters averages 36 tons approaching burdens of sauropods walking on Earth hundreds of millions of years ago. The resulting soil compaction is now putting both ecosystem balance and crop yields at risk

Re Soil Foundation