Significant barriers are preventing workers transitioning from oil and gas to renewable jobs, a report has claimed.
More than 75% of offshore workers surveyed said they would be willing to make the move between sectors.
Half of them said their first choice would be a switch to wind energy.
But many have expressed concerns that there are limited opportunities for them and that retraining is prohibitively expensive.
Industry body Scottish Renewables said it was working to narrow the skills gap between the two industries.
The Scottish government said it was working with the UK government to ensure they were both doing all they could "to protect jobs and retain vital skills."
Creating a so-called green economy is a key mechanism for both governments' recovery plans from Covid.
Friends of the Earth Scotland, Greenpeace and Platform say their joint survey shows there needs to be more engagement with workers if there is to be a "just transition" away from fossil fuels which does not penalise the workforce.
The groups spoke to more than 1,300 offshore workers and found 81% were open to leaving the industry.
The survey also said that 91% of respondents had not heard of the term "just transition".
Ryan Morrison from Friends of the Earth Scotland said: "Despite the Scottish government's rhetoric, the idea of a just transition has failed to reach the overwhelming majority of the workers who will be most directly impacted.
"Workers' voices must be at the centre of that transition process. The government must ensure oil and gas workers are supported into secure and sustainable jobs."
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