Global carbon dioxide levels hit landmark high
The planet has set a significant – and unwelcome – landmark with the concentration of heat-trapping carbon dioxide in the atmosphere passing 400 parts per million (ppm) for the first time in more than 3 million years.
“We have no time to lose.”
“Humanity has never been here before,” John Connor, chief executive of The Climate Institute, said in a statement. “We are in dangerous and uncharted territory, with little time to ensure a safe and sustainable future.”
