World leaders travel to Madrid for the COP25 UN climate conference high-level phase

The outcome of the talks might have a huge impact on next year's Glasgow event.

Negotiations have been sluggish so far and dissatisfaction is rising at the rate of progress.

Yet Edinburgh University's climate scientist Prof. Sandy Tudhope suggests that there is still time to turn them around.

He said: "Because it's doable, I'm trying to be hopeful about it, but what it does take is a lot of go....