 PlanetScope nanosatellites provide a cost-effective way to monitor trees both inside and outside of forests globally. This allows for more accurate assessments of tree cover at continental scales, including areas not typically considered as part of tree cover, such as cropland and grasslands. This can help to redefine land use impacts and build the basis for natural climate solutions. This article was authored by Florian Rayner, Martin Brandt, Xiaoyitong and others.