It was a graph that plotted carbon dioxide in the atmosphere over the course of the 20th century and into the 21st. CO₂ had risen steadily, and then more rapidly, but it hadn’t gone up in a ...

Carbon dioxide in the atmosphere is at its highest level in modern history and 50% higher than in preindustrial times, according to new findings from the National Oceanic and Atmospheric Agency ...

It was a graph that plotted carbon dioxide in the atmosphere over the course of the 20th century and into the 21st. CO2 had risen steadily, and then more ... With artificial photosynthesis ...