According to scientists and climate change experts, global carbon emissions in 2022 remain at record highs, with no sign of the falls needed to curb dangerous climate change. In particular, levels of carbon dioxide – the most significant greenhouse gas – in the atmosphere are projected to average 417 parts per million in 2022, 51% above pre-industrial levels. The experts warn that if the world continues with current levels of emissions, there is a 50 percent chance that global temperature rises will hit 1.5 degrees Celsius in nine years’ time, a threshold beyond which the worst impacts of climate change are expected. They also consider that emissions would have to fall at rates comparable to 2020 (when COVID-19 restrictions shut down transport, industry and economic activities) every year to keep temperature rises to 1.5 Celsius in the long term; and in order to keep global temperature rises to 1.5 degrees Celsius above pre-industrial levels, the world has to cut carbon dioxide emissions to net-zero by around 2050. See https://www.scotsman.com/news/politics/cop27-carbon-emissions-from-fossil-fuels-climb-to-new-highs-scientists-warn-3914209.
