UN’s former climate change chief, who was a key architect of the Paris climate agreement, joins long list of candidates to succeed Ban Ki-moon

Carbon emissions stopped growing in 2015 for the first time in 10 years as the world turned its back on coal and embraced energy efficiency and renewable power with increased vigour, according to a new set of statistics.

Year 2015 saw record worldwide investment and implementation of clean energy such as wind, solar and hydropower

Carbon dioxide has been steadily rising since the start of the Industrial Revolution, setting a new high year after year. There’s a notable new entry to the record books. The last station on Earth without a 400 parts per million (ppm) reading has reached it.