Rapid and voluminous volcanic eruptions around 252 million years ago can be linked with a mass extinction event.
There is evidence for catastrophic climate change from protracted volcanic eruptions in the past, but since the 1950s the emissions we produce far exceed those from volcanic activity.
New Zealand’s PM Jacinda Ardern, police minister Stuart Nash (right) and the minister for Christchurch regeneration Megan Woods announcing stronger gun laws and the creation of a firearms registry.
A register of all firearms is part of the next stage of New Zealand's gun law reform, following the Christchurch mosque shootings.
Fat activists argue fat is the most appropriate word to describe their bodies.
The British Psychological Society is calling for a language change, from 'obese people' to 'people living with obesity'. But using the word obesity can reinforce rather than prevent stigma.
The character of Judge Dredd was designed to be satirical, depicting the ultimate draconian cop.
The fictitious world of Judge Dredd highlights authoritarianism, including laws against outsiders, walls around cities and rules that deny people basic rights. Are the Dredd comics a cautionary tale?
Even people who accept the science of climate change sometimes resist it because it clashes with their personal projects.
People are more likely to deny climate change if they're inclined toward hierarchy, have lower levels of education or are more religious. But the strongest predictor of denial is a person's politics.
Academic freedom protects free speech, but also sets conditions.
Academic freedom protects free speech, but also conditions it. Knowledge cannot be tested and doesn’t advance if there isn’t also a duty to be well informed and reasoned.
Women are more likely to feel watched, exposed or more accountable in open-plan offices.
Some of the latest findings about open-plan offices suggest that staff satisfaction and privacy decrease, people become less friendly and women feel watched and appraised on appearance.
During the Pliocene, up to one third of Antarctica’s ice sheet melted, causing sea-level rise of 20 metres.
New research shows that warming by more than 2°C could be a tipping point for Antarctica's ice sheets, resulting in widespread meltdown and changes to the world's shorelines for centuries to come.
Australian tennis player Nick Kyrgios was sentenced to six months of probation following several controversial events and an ‘aggravated pattern of behaviours’.
As Australian tennis player Nick Kyrgios begins his probationary period this week for a pattern of bad behaviour and foul language, his value to sponsors and the sport of tennis remains high.
Eating less meat is one change many of us can make to reduce our contribution to climate change.
Individual actions to reduce emissions are important in two ways. First, they have an immediate impact, and secondly, adopting low-carbon life choices sends a clear message to political leaders.
Streets are some of our most important public spaces.
Auckland, New Zealand's largest city, is going through a transformation of its centre and waterfront to support of walking, cycling and public transport, and less space for cars.
The fictional universe of superheroes can teach us about what motivates some of us to believe in gods.
Superheroes may be able to regenerate and fly through walls, but their supernatural qualities differ from those of spiritual beings that attract religious devotion.
People with depression experience symptoms that affect their mood, cognitive function and physical health.
Understanding of depression has advanced significantly since the first diagnostic criteria were introduced in the 1980s, but we still lack clear consensus on how this mental disorder should be explained.
Tax reforms generally imply a trade-off between average income and inequality.
At 33%, New Zealand's highest income tax rate is relatively low compared to other economies. Lifting it and cutting tax for low-income earners could improve welfare.
Toby Morris/Health Research Council
One in four New Zealanders are living with a disability. Non-disabled people think they know what disability "looks like", and often how to help. And that can be a problem.
Governments can choose to spend money in ways that support climate change policy, including a shift to electric vehicle fleets.
New Zealand is introducing new procurement rules to better link government spending with climate change policy. The first target is to reduce emissions profile of the government's vehicle fleet.
More than 32,000 civilians have been killed in the Afghanistan war between 2009 and 2018 - most of them by anti-government forces.
An official inquiry is underway to examine if New Zealand troops committed war crimes in Afghanistan during an event known as Operation Burnham, when six civilians were killed.
After winning the right to vote in 1893, New Zealand’s suffragists kept up the battle, but the unity found in rallying around the major cause had receded.
Jim Henderson/Wikimedia Commons
New Zealand was the first nation to grant women the vote in 1893, but during the pre-war years enduring prejudice against women in politics outweighed any support for women to stand for parliament
Since the industrial revolution began in the mid-1700s, atmospheric carbon dioxide concentrations have gone up by 46%.
For the past two and a half million years, Earth has experienced regular ice ages, but with carbon dioxide levels now over 400 parts per million, the next ice age is postponed for a very long time.
The climate crisis is itself an appalling lapse in duty of care by decision-makers, but we shouldn’t overlook this duty in our response.
Climate change is a super-wicked problem. With a growing sense of urgency to act on climate change, it is vital we strike a balance between encouraging action and limiting pushback.