Apart from the debacle of Circularity Scotland, presided over by the astonishingly inept Lorna Slater (made a Junior Minister through the Bute Agreement though having not even won the seat in her own constituency) -
https://www.bbc.co.uk/news/articles/c709wvn70vwo.amp
The ridiculously ill thought out heat pumps scheme, championed by Patrick Harvie (also a Junior Minister as per the Bute Agreement, despite being a List MSP) which would have increased fuel poverty while installing pumps which, according to heat pump manufacturers, 'are unsuitable for the Scottish climate' and are unsuitable for both tenement living and rural living -
https://www.bbc.co.uk/news/articles/cg43639zdg7o.amp
The fact that actual environmentalists such as Robin Harper and Andy Wightman left the Scottish Greens because of the party's obsession about independence and the GRR bill, the crushing of any dissent on such issues and the party's seeming lack of interest in environmental issues. Leaving the party with the two mentioned above, Maggie Chapman who presided over the ERCC while it 'harmed rape survivors', and the ridiculous student politics of Ross Greer.
These are just examples off the top of my head. There are broader issues in terms of their policies detrimentally affecting those living outwith big cities with good public transport links.
The current co-leaders of the Scottish Greens have openly said that 'anyone who does not accept that trans women are women has no place in their party'. So anyone who cares about the environment and climate change but won't bleat the required mantras is not welcome.
The Scottish Greens have fucked over their chance to make a real difference for environmental issues in deference to their adulation to a woman hating ideology.