Sir, – David Whitehead (May 16th) confuses climate change and global warming. We are seeing climate change. Warming is happening as energy is pumped into the Arctic; 75 per cent of the ice has melted and the seas are warming as the ice cover is removed. As a result the area of Arctic influence increases as the Arctic vortex weakens and meanders and we find ourselves in the weather systems which used to stay safely north around Iceland. – Yours, etc,
PATRICK M DAVEY,
Dublin Road,
Shankill, Dublin 18.