For most people in the UK, climate change feels like something that will happen at some undefined point in the future - to our children and grandchildren's generation. For the people of the Carteret Islands in Papua New Guinea, it's a bit more serious than "one of those summers". As the sea level rises, their drinking water and crops have been poisoned by salt. The 1000 Islanders are packing up and their home abandoned to the waves.

For most people in the UK, climate change feels like something that will happen at some undefined point in the future - to our children and grandchildren's generation. For the people of the Carteret Islands in Papua New Guinea, it's a bit more serious than "one of those summers". As the sea level rises, their drinking water and crops have been poisoned by salt. The 1000 Islanders are packing up and their home abandoned to the waves.

Whoever it was that said '24 hours is a long time in politics' certainly wasn't kidding. While I'm still feeling worn out by the political frenzy that surrounded last week's G20 summit, even by Saturday the world had moved on.

Whoever it was that said '24 hours is a long time in politics' certainly wasn't kidding. While I'm still feeling worn out by the political frenzy that surrounded last week's G20 summit, even by Saturday the world had moved on.

So the G20 verdict's out. Obama and the rest of the visitors have jetted off.