The Ghost of Climate Past: Lessons from a previous global warming

by Emma Bertran figures by Rebecca Clements Over the past few decades, our Earth has undergone global changes, a gradual reshaping that can be witnessed in real time. Since the Industrial Revolution, the global annual mean concentration of atmospheric carbon dioxide (CO2), a powerful greenhouse gas, has increased by more than 40%, rising from an average of 280 ppm (parts per million; 280 ppm can … Continue reading The Ghost of Climate Past: Lessons from a previous global warming