There is no doubt that the earth became warmer over the twentieth century (by about 0.7 degrees Celsius), which most climate scientists attribute largely to human carbon dioxide emissions.
La Terre s’est indiscutablement réchauffée au cours du XXe siècle (d’environ 0,7°C), ce que la plupart des scientifiques experts du climat attribuent largement aux émissions anthropiques de dioxyde de carbone.