Mr McArthur said:
"These committee reports warn that the Scottish government need to deliver significantly more detail on emissions reductions across all sectors.
"From farmers and land managers to scientists, the parliamentary committees have heard from stakeholders across the country that this plan is not ambitious enough. These reports warn that from agriculture to transport, what we need are concrete proposals, measurable baselines and far-reaching targets to build a more sustainable future.
"In particular, far more needs to be done to ensure that Scotland is pushing forward on renewables and district heating projects, which are responsible for a significant percentage of the country's emissions yet have seen some of the slowest progress."