Mr Witt's letter 'Don't panic on climate change' (NCE, 3 May) highlighted the acceptance problem we face in trying to deal with global warming.
Climatologists are not 'oblivious' and have not 'overlooked earth's natural climate cycle'.
They are fully aware - and that's what makes it worrying.
The fact is we are no longer following the earth's natural cycle and, while we should be starting to head towards the next ice age, disturbingly we are not.
While natural processes have an influence, there is no denying man's involvement.
Anyone who thinks otherwise needs to wake up and smell the coffee.
The sooner we stop trying to absolve man of any blame, the sooner we can deal with the problem. Otherwise we'll be waking up and smelling the coffee being grown in Yorkshire.
Phil Welton, philip.welton@ntlworld. com