Emeritus Professor Ralph Cooney ONZM, FRSNZ

The Covid-19 situation in New Zealand at present is at a crossroads: the number of new cases is approaching zero, but is not quite zero....

One positive but unplanned outcome from Covid-19 was the brief glimpse it provided into a future scenario where gases and particles from the combustion of...

Covid-19 has provided humanity with a pause to consider the status quo and hopefully to make both short-term and longer-term adjustments for a better and...

In conversations with friends, I have occasionally been asked the question, “What is the most beautiful thing you have ever seen?” The answer is always...

There are growing majorities across most countries that consider global warming is occurring and is due to human activity. I hope to assure readers that...

The recent news from across the Tasman during the early summer months has been dominated by reports of exceptional bushfires in Queensland and New South...

For international travellers, plastic waste seems to exist everywhere – even on the most pristine and unique seascapes and landscapes. Most of the plastic materials...

It was a routine shopping experience in Warkworth. I was considering changing the diet of my dog, Luna, from kibble to meat. The shop manager...

Why is coffee so important to so many people around the world, who use it to start the day well, and later to maintain alertness...

In recent issues of Mahurangi Matters, an exchange has appeared between contributors on the health impacts of 5G radio frequency radiation (RFR). These exchanges are...