The researchers studied how satellite data can help estimate plant growth in African savannas. They found that the satellite method they used often underestimated plant growth, especially in the Sahel region. However, they discovered that a specific satellite measure called EVI was closely linked to plant growth estimates at different sites. By combining EVI with other data from towers, they improved the accuracy of their plant growth estimates. The relationship between EVI and plant growth was influenced by the amount of leaves on plants. These findings show promise for using satellite data to estimate plant growth over large areas.