Cop26 week one: the impression of progress – but not nearly enough

Analysis: the significant outcomes' came thick and fast but there are question marks about credibility

Long before delegates gathered in Glasgow, the scene for Cop26 was set by the starkest warning yet from the world's scientists that human activity was unequivocally disrupting the climate, extreme weather was growing more intense, and urgent action was needed to prevent still worse chaos in the future.

Code red," declared the UN secretary general, Antonio Guterres, as evidence mounted this summer of ever fiercer heatwaves and increasingly deadly storms and floods. No pressure, then, on the climate diplomats who were told they represented the last best chance" of holding global heating to 1.5C.