Reasons being:
- large fall in thermal coal plants, especially in the largest emitter (the USA), where natural gas topped coal for electricity generation for the first time ever.
- Widespread anti-local pollution policies in the second largest emitter (China) also having a knock on effect on carbon.
- the UK's emissions have fallen to the lowest level since the 19th century (!):
https://www.carbonbrief.org/analysis-uk-cuts-carbon-record-coal-dropBasically the narrative that seems to be developing is that although emissions from non-electricity sectors aren't being reduced that much and in fact are increasing in many countries, almost worldwide the emissions from electricity grids are plummeting, in some cases way faster than anybody thought.