Claim: UK carbon dioxide emissions have fallen 42% since 1990.
Fact-check: Boris Johnson gets his numbers muddled on economic growth - Full Fact
Verdict: broadly correct. uk carbon dioxide emissions fell 39% between 1990 and 2018, though this data isn't perfect and may overstate the fall.
Organisation: Full Fact
Author: Abbas Panjwani
Date published: 2020-01-31T00:00:00