The last time global carbon dioxide levels were around 400ppm was four million years ago. On average, the world was 3°C warmer, but in high northern latitudes, it was up to 14°C warmer than today.
As the planet continues to warm, extreme weather events such as heatwaves and heavy rainfall are becoming more frequent, intense and longer, according to global weather data.
Latest research explores how a warming ocean circulates underneath Antarctica’s floating ice shelves and how this contributes to future sea level rise.
The drop in traffic during COVID-19 lockdowns reduced global emissions. If we keep encouraging cycling and working from home beyond the pandemic, our climate goals may become more achievable.
Exclusive: the recent discovery of probably the oldest known surviving photograph of a Māori sheds light on the remarkable subject of Taika Waititi’s new film project.
A law to fast-track development consents is being fast-tracked itself. Before it’s too late, politicians should insist on greater protection against long-term environmental damage.
Kyle Clem, Te Herenga Waka — Victoria University of Wellington
Over the past 30 years, the South Pole has been one of the fastest changing places on Earth, warming more than three times quicker than the rest of the world.
New Zealand will hold the world’s first national referendum on legalising recreational use of cannabis in September. It must learn from mistakes in implementing earlier drug law reforms.
Simon Chapple, Te Herenga Waka — Victoria University of Wellington; Kate C. Prickett, Te Herenga Waka — Victoria University of Wellington, and Michael Fletcher, Te Herenga Waka — Victoria University of Wellington
Resilience, humour, hardship and tragedy – a unique survey reveals how ordinary New Zealanders coped during one of the world’s strictest COVID-19 lockdowns.
A major review of New Zealand’s health system points to systemic racism as a reason for disparities in health outcomes for Māori. But it was split on the role a proposed new Māori agency should play.
If we had not altered the composition of the atmosphere at all through emitting greenhouse gases, particulate matter and ozone-destroying chemicals, the average temperature would have remained stable.
Andrew Lorrey, National Institute of Water and Atmospheric Research; Ben Noll, National Institute of Water and Atmospheric Research, and Lauren Vargo, Te Herenga Waka — Victoria University of Wellington
Auckland’s extreme drought and the rapid retreat of glaciers in the Southern Alps both highlight how important long-term observations are for water management policy and planning.
As a former NZ Police sergeant, I know firsthand how police fatalities shape one’s behaviour. The recent shooting of two officers in Auckland cuts to the heart of NZ’s trust-based policing policies.
Rahul Sen, Auckland University of Technology and Swati Nagar, Auckland University of Technology
With other international education markets still struggling with the COVID-19 pandemic, New Zealand and Australian universities should position themselves as premium destinations.
Adjunct Professor, Faculty of Health and Environmental Sciences, Auckland University of Technology, and Professor of Political Science, Charles Sturt University