The Scottish Government has been urged by four parliamentary committees to improve its approach to climate change targets.
MSPs delivered their judgments on the same day, welcoming ministers' ambition but urging them to look again at key areas.
Without further effort, the Government risks missing some annual targets and should promote a "step-change" in the public's attitude to climate change, the reports warn.
Details are lacking and communities must be made to feel part of the solution, ministers were told. It was revealed last October that carbon emissions targets for 2010 were not reached. This was attributed to more demand for energy for heating because of bad weather.
Environment Minister Paul Wheelhouse explained in January that new measures will compensate for the missed target, as he outlined the Report on Proposals and Policies (RPP2), which is aimed at meeting climate change ambitions up to 2027.
In the first of the four Holyrood reports, Rob Gibson, convener of the Rural Affairs, Climate Change and Environment Committee, said: "The committee is concerned that, going forward, some of the annual targets set out in the draft RPP2 report will be missed unless all policies and proposals are implemented."
Maureen Watt, convener of the Infrastructure and Capital Investment Committee, said: "The transformational change needed to meet these challenging targets in relation to housing and transport not only requires the Scottish Government to have an ambitious approach but society as a whole."
Murdo Fraser, convener of the Economy, Energy and Tourism Committee, said: "It's clear that the principle behind this report is welcome. However, the committee heard a number of concerns that although the direction of travel is clear, the detail of how we get there is lacking in some areas."
Green MSP Alison Johnstone said: "The government's plan lacks ambition on cheap and clean heat and is worryingly dependent on carbon capture technology that is unlikely to make a difference in time. We are seriously missing a trick if we allow our renewables boom to be captured by big companies instead of communities and councils who could secure a lasting income."
Mr Wheelhouse added: "The RPP2 shows how Scotland can achieve its emissions targets from 2013 to 2027 and we remain committed to action on climate change, even in the face of faltering ambition elsewhere."