An emergency meeting of the Scottish Cabinet on Thursday morning was held to agree the end of the deal that had brought the Greens into power in Scotland in 2021.

The move means Green co-leaders Lorna Slater and Patrick Harvie are no longer part of the Scottish Government.

Here's what the end of it could mean.

– What was the Bute House Agreement?

After the May 2021 Scottish Parliament election, Nicola Sturgeon’s SNP emerged as the largest party but without an overall majority.

The Scottish Greens saw their best-ever result with eight MSPs, enough to give the two pro-independence parties a working majority at Holyrood.

Negotiations began soon after the election and the deal cleared its final hurdle at the end of August 2021 when Green members voted to approve it – with 1,169 members (83%) backing the deal, 234 voting against and nine abstaining.

The Bute House Agreement takes its name from the First Minister’s official residence in Edinburgh, where the draft deal was signed.

Ms Sturgeon said the deal was a “historic” moment, and that Green co-leaders Patrick Harvie and Lorna Slater were “tough” negotiators.

– What did the two parties agree to?

Green co-leaders Patrick Harvie and Lorna Slater both entered government as ministers. Their portfolios included tenants’ rights, the heat in buildings strategy, the circular economy and biodiversity.

Alongside the text of the Bute House Agreement, which set out the expectations for each party, a shared policy programme for their time in Government was published.

This contained a number of environmental policies, a commitment to implement rent controls, and a “fair fares review” for public transport.

The agreement also set out 10 areas where the two parties could continue to disagree.

These included aviation policy, green freeports, the defence sector and economic principles related to concepts of sustainable growth.

– What happened on Thursday?

First Minister Humza Yousaf called Mr Harvie and Ms Slater into his residence at Bute House and told them he was ending the deal.

In a hastily-arranged press conference later than morning, he said the agreement had “run its course”.

He told journalists the decision meant a “new beginning” for his party in Government.

– How will the Scottish Government now operate?

The SNP will rule at Holyrood as a minority administration, requiring it to work with other parties to pass legislation and – importantly – its budgets.

In the last parliamentary session, the Greens acted as bedfellows to the SNP and were able to extract key concessions – including free bus travel for under-19s, which was later extended.

The Greens could return to this type of unofficial arrangement with the SNP – as the First Minister has suggested – but it would likely cost the SNP dearly to bring in support from a party with whom it has just severed ties.

The SNP currently has 63 MSPs – two short of a majority. They could turn to all of the parties in Holyrood for help in passing legislation – except the Alba Party which only has one MSP – but would no doubt need to sweeten the deal.

– How did the Greens react?

The Scottish Greens were outraged by the decision to end the agreement, describing it as an act of “political cowardice”.

Speaking to journalists at a Holyrood press conference after the deal was scrapped, Mr Harvie even suggested the First Minister may not last until the next budget to make a deal with his party.