www.businesstimes.com.sg/companies-markets/temasek-increases-internal-carbon-price-to-us50-per-tonne-of-emissions-amid-net

Report July 12:

Temasek also wants to invest in some sectors or companies that are currently carbon-emitters today, but are working on a transition to be low-carbon emitters. 

This is why Temasek’s carbon emission levels will not decline steadily, but may see an increase over certain periods in the future.