In 2024, Italy's climate change-related tax revenue is forecasted to be 3.02% of GDP. This percentage remains almost constant at 3.01% from 2025 to 2028, reflecting a stabilization trend with negligible variation. Compared to 2023, the data does not show significant year-on-year percentage variation, indicating a steady state rather than marked growth or decline in the short term. The compound annual growth rate (CAGR) across this five-year period is effectively 0%, signifying no average annual increase or decrease.

Future trends to watch include:

Potential policy shifts in the EU and Italy towards more aggressive climate taxation.
Economic impacts of climate initiatives that may influence tax revenue ratios relative to GDP.
Technological advancements that could alter industries' carbon footprints and tax liabilities.