The issue focused on climate change and carbon dioxide emissions as scientists warned that rising temperatures could disrupt agriculture and agriculture itself could begin to disappear as carbon dioxide emissions rise.

President Barack Obama raised the issue during his climate change strategy speech last week in Berlin.

At the climate summit in Warsaw last week, scientists warned that scientists expect carbon dioxide emissions to rise between 50 per cent and 85 per cent over the next century if climate change remains unchecked.

Around 55 per cent of climate scientists agree that climate change