Rise in global carbon emissions a 'big step backwards', says BP

Coal rebound and slowing efficiency gains in 2017 suggest Paris goals may be missed, says oil firm

The renewed upward march of global carbon emissions is worrying and a big step backwards in the fight against climate change, according to BP.

Emissions rose 1.6% in 2017 after flatlining for the previous three years, which the British oil firm said was a reminder the world was not on track to hit the goals of the Paris climate deal.