Like Nothing on this Earth

During the twentieth century, the southwestern corner of Australia was cleared for intensive agriculture. In the space of several decades, an arc from Esperance to Geraldton, an area of land larger than England, was cleared of native flora for the farming of grain and livestock. Today, satellite maps show a sharp line ringing Perth. Inside that line, tan-coloured land is the most visible sign from space of human impact on the planet. Where once there was a vast mosaic of scrub and forest, there