The great debate: when does summer begin?

The great debate: when does summer begin?

While both the astronomical and meteorological definitions are valid, NIWA forecasters have turned to Mother Nature’s weather patterns, looking at the warmest 90-day period of the year to provide another perspective on when summer in Aotearoa New Zealand begins.

Opening windows and doors “one of the best ways” to remove Covid-19 from classroom air

Opening windows and doors “one of the best ways” to remove Covid-19 from classroom air

One of the best ways to reduce the likelihood of Covid-19 being transmitted in Aotearoa New Zealand classrooms is simply by opening doors and windows to create natural ventilation, say NIWA air quality experts.

Coastal flooding likely to be main driver for adaptation

Coastal flooding likely to be main driver for adaptation

New NIWA-led research shows increasing flood risk is going to be what leads people to make changes to adapt to sea-level rise.“Rising seas are slowly causing a trifecta of impacts along coastlines in Aotearoa: increasingly frequent flooding, coastal erosion and even permanent inundation,” says Dr Scott Stephens, NIWA Chief Scientist for Coasts & Estuaries.

The largest flood flow ever measured

The largest flood flow ever measured

Flood flows on the Buller River this month were the largest of any river in Aotearoa New Zealand in almost 100 years, NIWA measurements show.Meanwhile, a NIWA monitoring station on the Buller River at Te Kuha, about 10km upstream, was continuously recording water levels throughout the flood.

Sleuths Read Old Booby-Trapped Letters Without Opening Them

Sleuths Read Old Booby-Trapped Letters Without Opening Them

Writing today in the journal Nature Communications, researchers describe how they used an advanced 3D imaging technique—originally designed to map the mineral content of teeth—to scan four old letters from the Brienne Collection to unfold them virtually, no tearing required.

The YOLOers vs. Distancers Feud Is Tearing Us Apart

The YOLOers vs. Distancers Feud Is Tearing Us Apart

From my vantage here in Central Texas, home to one of the largest groups of the newly Covid-immune, I've noticed that all these wonderful antibodies are actually making our existing, pandemic-related social cohesion problems considerably worse.

5G Was Going to Unite the World—Instead It's Tearing Us Apart

5G Was Going to Unite the World—Instead It's Tearing Us Apart

A growing number of countries are aligning with either a Western or a Chinese version of the tech.“National security and commercial interests are all entangled, and it's very hard to separate them,” says Scott Wallsten, president of the Technology Policy Institute, a think tank.

Remote Work Has Its Perks, Until You Want a Promotion

Remote Work Has Its Perks, Until You Want a Promotion

People who have studied or practiced remote work say leaders like Zuckerberg and their executives will have to tear themselves from their Bay Area roots—in some cases physically—if they are to avoid making their new legions of remote workers second-class employees.

The Last, Lonely Walks Through New York City

The Last, Lonely Walks Through New York City

One March evening, photographer Natan Dvir stood in the middle of an empty Fifth Avenue in New York City, fighting back tears.One of Dvir’s favorite photographs from the series was taken outside Grand Central Terminal, where a lonely hot dog cart stood vigil despite the ongoing disaster.

Fewer Wrecks, Grounded Planes, and More Car News This Week

Fewer Wrecks, Grounded Planes, and More Car News This Week

Oh, and Elon Musk went on a tear this week, calling shelter-in-place orders “facist” even as he celebrated Tesla’s strong first quarter.And this week in Tesla: The electric-car maker posts a surprising profit , Elon Musk agitates for an end to shelter-in-place orders (against public health officials’ recommendations), and then he maybe violates an SEC settlement ?

Climate change content for school kids gets revamp

Climate change content for school kids gets revamp

Young New Zealanders can now access the most up-to-date educational material about the science of climate change and its impacts on Aotearoa thanks to NIWA’s new web section: .

Empathy Is Tearing Us Apart

Empathy Is Tearing Us Apart

In the first part, Americans who scored high on an empathy scale showed higher levels of “affective polarization”—defined as the difference between the favorability rating they gave their political party and the rating they gave the opposing party.

Where Do Hippos Wander? An Aquatic Mystery, Solved

Where Do Hippos Wander? An Aquatic Mystery, Solved

Video: Keenan Stears/UCSBThe researchers divided the tranquilized hippos into three categories: large, dominant males that run things in the river; large sub-adult males that are coming up in the world but still answer to the dominant males; and small males even lower in the pecking order.

Using AI, and Film, to Track Tear Gas Use Against Civilians

Using AI, and Film, to Track Tear Gas Use Against Civilians

The film documents how London nonprofit Forensic Architecture is developing machine learning software that could help uncover where Triple Chaser grenades are being launched or thrown. A mesmerizing sequence at the film’s heart strobes through images that Forensic Architecture used to train machine learning software to recognize Triple Chaser grenades.

Mysterious Midwest Tornadoes, Airbnb's NYC Truce, and More News

Mysterious Midwest Tornadoes, Airbnb's NYC Truce, and More News

Mysterious Midwest Tornadoes, Airbnb's NYC Truce, and More News. Tornadoes are tearing up the Midwest, Airbnb calls truce, and we've got some books for your long weekend. Airbnb and the city of New York have reached a truce.

The heatwave in numbers

The heatwave in numbers

NIWA has crunched the data on this week’s heatwave and come up with the following record breakers: Highest temperature: Hanmer Forest 38.4˚C Warmest temperature in Aotearoa so far this summer was recorded at Hanmer Forest on 31st January.

Take a Good Look, America. This Is What the Reckoning Looks Like

Take a Good Look, America. This Is What the Reckoning Looks Like

That turns out to be a myth—frogs are smarter than that.Humans aren’t, at least when it comes to climate change.LEARN MOREThe WIRED Guide to Climate ChangeFor nearly a week, fires of unprecedented speed and ferocity have been tearing through California.

Luxuriate in This Mechanic's Teardown of a 1974 Harley Davidson

Luxuriate in This Mechanic's Teardown of a 1974 Harley Davidson

Luxuriate in This Mechanic's Teardown of a 1974 Harley DavidsonIf you want to get to know something, tear it down.