I was surprised to read the letter by David Hardie (‘Global warming or not…' Letters pages, The Weekend Sun, October 21) that there will be effectively no sea level rise due to melting ice and that 'we are presently experiencing the lowest temperatures for 100 years. A statement like that should be taken with a pinch of salt as for 1) it gives no data to back it up. And 2) is he referring to NZ or does he mean global averages?

Climate change is an extremely complex science best left to those with Phds who work in the area and not those armchair critics that listen to certain presenters on talkback radio!

I am glad to see The Sun published a letter from Peter Otway to counter David Hardie's letter.

For those still sitting on the fence and don't know who to trust, why not just check the NASA website who despite their previous paymaster Trump's stand on climate change have a wealth of information on the subject and tellingly also publish statements from many of America's leading science agencies from geology to biology, who all state that man's emissions are warming the planet.

Likewise the UK's Royal Society that represents science also makes similar statements that there is now overwhelming evidence that man's emmissions are warming the planet.

David Maxfield, Ohauiti.