Human populations have drastically changed the Earth's land over thousands of years, turning most of it into human-altered areas called anthromes. Recent analysis shows that in the past century, these changes have become more intense and widespread, leading to new ecological processes. This transformation is so significant that it has permanently altered the Earth's land, creating a distinct geological record different from previous eras. The extent and intensity of human impact on ecosystems are irreversible, regardless of future population changes or land use efficiency improvements. The Earth's biosphere has been irreversibly changed by human activity, marking a new era in Earth's history.