​The world pledged to halt biodiversity loss by 2030, but as Cop17 delegates meet in Armenia next week the outlook is bleak and optimism has faded

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The world has lost its way on nature once again. Next week, biodiversity Cop17 begins in Yerevan, Armenia, and expectations are low. Very low.

Almost four years ago, governments reached an historic agreement at the biodiversity Cop15 to halt the destruction of Earth’s ecosystems – to rapturous applause in Montreal, Canada. I still remember the excitement in the hall in the early hours of that freezing December morning.

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Prime minister presents new kind of challenge for SNP, and his Scottish visit will loom large over its big event

This year, even Andy Burnham is invited to the Scottish National party conference. But by the time John Swinney stands up to address members on Saturday afternoon in Aberdeen to reinvigorate the case for a second independence referendum, his party may regret giving the UK prime minister so much prominence in the conference buildup.

Burnham is expected to visit Scotland on Friday – the middle of the event – in a thinly veiled attempt to overshadow the SNP gathering. While he will be in a different venue, the former Manchester mayor’s presence in Scotland will loom large over the event. Since taking over at No 10 in July, Burnham has largely avoided direct confrontations with his political rivals, rarely attacking Nigel Farage or Kemi Badenoch. But he has taken a different approach with the Scottish first minister.