Seems that we are currently in a low for CO2 emissions. UK emissions are down to 19thC levels, shale gas has improved US levels, China is phasing out coal fired power stations and wind/solar is getting cheaper and more popular.
However, it seems that concerns have been expressed over the US situation in the near future . . .
Global (https://www.theguardian.com/environment/2017/mar/17/co2-emissions-stay-same-for-third-year-in-row-despite-global-economy-growing)
US (https://www.ft.com/content/540ebb0c-0a60-11e7-ac5a-903b21361b43)
UK (http://www.bbc.co.uk/news/science-environment-39181753)