Pledges (or Pie in the Sky)?

The International Energy Agency (IEA) calculate that current 'pledges' will result in a carbon emissions drop less than half that required to reach carbon zero, by 2050 (https://www.theguardian.com/environment/2021/oct/13/carbon-emissions-will-drop-just-40-by-2050-with-countries-current-pledges). The IEA note that 'greenhouse gas' emissions are rocketing, as countries come out of the Covid-19 pandemic. Emissions are currently the 2nd highest on record. The IEA maintain that $4tn of investment is needed, over the next 10 years, to stand a chance of reaching net zero. One can see, however, how meaningful 'pledges' actually are. After a series of electricity blackouts, China is busily 'rowing back' on its 'pledge' to phase out building more coal-fired generating plants (https://www.theguardian.com/environment/2021/oct/12/china-coal-fired-plants-uk-cop26-climate-summit-global-phase-out). Coal extraction is being ramped up in Mongolia, and elsewhere, in China. Coal is much more polluting than either oil or gas. In terms of emissions generation, China is also the planet's second largest 'player'. Things are not looking good (even on paper) for the Cop26 meeting!