Making AI greener is likely to be a complex issue with companies needing to reduce their carbon gas emissions, by conducting forest carbon offsetting projects.
AI maybe useful for processing large amounts of data used in calculating carbon credits.
Making AI greener is likely to be achieved by using existing generative models, reducing the need for new ones (however this may reduce competition).
Using small low powered edge devices like microcontrollers may also contribute to energy efficient AI contribution.
Finally, value based AI usage - AI is not always needed to solve problems. Use AI for high value outcomes only, therefore reducing energy consumption to provide solutions!
Hope this input contributes to the debate!

Just to add Osint capabilities to acquire information is also an efficient and effective tool.