A United Nations climate change panel updated on Monday guidelines for governments to estimate greenhouse gas emissions so the most up-to-date scientific research is included.
Failure by countries to agree rules on implementing the 2015 Paris climate agreement aimed at curbing global warming would be suicidal, United Nations Secretary-General Antonio Guterres says.
Carbon dioxide emissions from the world's advanced economies are set to rise slightly in 2018, breaking a five-year decline, mainly due to higher oil and natural gas use, the International Energy Agency says.
The European Union's climate chief called for the bloc to take the lead and aim for net-zero greenhouse gas emissions by 2050 in its climate strategy published on Wednesday, ahead of key U.N. talks on curbing global warming.