Running horizontally along the graph, is "ecological footprint," which is a measure of how much resources we use and how much pressure we put on the planet. More is bad. Running vertically upwards, is a measure called "happy life years." It's about the well-being of nations.
En el eje horizontal, en la gráfica, vemos la "huella ecológica", que se refiere a los recursos que usamos y de la presión que ejercemos sobre el planeta. Más es malo. Hacia arriba, en vertical, hay una métrica llamada "años de vida feliz".