There are a number of causes of climatic change, and until all causes other than carbon dioxide increase are ruled out, we cannot attribute the change to carbon dioxide alone.

You can go outside and spit and have the same effect as doubling carbon dioxide.

The climatic world is one world even if politically we are not.

All this argument is the temperature going up or not, it's absurd. Of course it's going up. It has gone up since the early 1800s, before the Industrial Revolution, because we're coming out of the Little Ice Age, not because we're putting more carbon dioxide into the air.

There are a number of causes of climatic change, and until all causes other than carbon dioxide increase are ruled out, we cannot attribute the change to carbon dioxide alone.

The continued rapid cooling of the earth since WWII is in accord with the increase in global air pollution associated with industrialisation, mechanisation, urbanisation and exploding population.