High-income nations are responsible for 74% of the global excess in resource extraction over the 1970-2017 period, driven primarily by the USA and the countries of the European Union. This is demonstrated in an international study led by Jason Hickel, researcher at the Institute of Environmental Science and Technology of the Autonomous University of Barcelona (ICTA-UAB), which determines national responsibility for ecological breakdown by calculating the extent to which each nation has overshot their fair share of sustainable resource use thresholds.