The summit in Egypt could be the world’s best hope of progress on the climate issue

The latest UN climate summit - COP27 - is reckoned to be the world's best hope of progress on the climate issue.

Progress is certainly needed.

The global effort to cut emissions is "woefully inadequate" and means the world is on track for "catastrophe", the UN warned last week.

But the meeting in Sharm El-Sheikh is shaping up to be a prickly and confrontational affair.