Unrealistic targets are not good as depressed when not achieved....

Unrealistic targets are not good as depressed when not achieved.
Hence the UN and IPCC crying loudly for the last 25 years that the world is at an irreversible tipping point if CO2 emissions not reduced in the next ten years means that for thinking people they are seen to be political not science based.
If anyone is really concerned bout the overwhelming positivity of CO2 for crop yields and greening the planet try Nuclear.
Alternatively tax water vapour the most potent weather producer.