“When you put oil and gas into the equation, Scotland’s green credentials lose their lustre,” he said.
“Whilst Scotland happily reaps the economic rewards of oil and gas production, it’s using a book-keeping trick to hide the massive impact the very same industry has on its carbon footprint.”
The Scottish government, however, pointed out that it was implementing world-leading climate legislation. The vast majority of offshore emissions would be included in the European Union’s emissions trading scheme, in which the UK would be taking part.
A government spokeswoman said: “If Scotland was independent, then as well as having access to our North Sea resources so that we could invest in a sustainable fund for the future, we would also have the powers to be in an even stronger position to combat climate change. That would be a win for Scotland, and a win for the environment.”