text: We cannot stop carbon emissions because most of them come from volcanoes, he said. It is a normal element cycled around in the earth and my science, which is looking back in time, is saying we have had a planet that has been a green, warm wet planet 80 per cent of the time. We have had huge climate change in the past and to think the very slight variations we measure today are the result of our life we really have to put ice blocks in our drinks.