‘Bunch of baloney’: calls grow for Cop summit reforms as countries on track to fail nature targets

Cop17, focused on protecting nature and restoring ecosystems, concludes on Saturday with critics saying system allows one idiot' to stall progress

Calls are growing for major reforms to UN biodiversity summits as countries fail to deliver on their promises to halt the destruction of the natural world, with governments likely on track to continue their record of never having met a target in the 34-year history of the convention.

Two weeks of negotiations at biodiversity Cop17 in Yerevan, Armenia, concluded on Saturday morning with countries vowing to redouble their efforts to meet this decade's targets, which include commitments to protect 30% of the planet for nature, restore nearly a third of Earth's degraded ecosystems and reform $500bn (410bn) of environmentally damaging subsidies.