The evidence that climate change is happening is completely unequivocal... The later governments leave tackling climate change, the harder it will be to combat... The variation we are seeing in temperature or rainfall is double the rate of the average. That suggests that we are going to have more droughts, we are going to have more floods, we are going to have more sea surges and we are going to have more storms. These are the sort of changes that are going to affect us in quite a short timescale