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David Dempsey1

David Dempsey1

Senior lecturer, University of Canterbury
My research group tackles some big challenges that arise when managing extreme groundwater systems in a safe and sustainable way.

Steam-driven volcanic eruptions - we use machine learning techniques to identify seismic signals that suggest an imminent eruption from shallow hydrothermal systems. Using this, we have developed a real-time warning system for Whakaari.

Human-triggered earthquakes - we model how fluid injection and extraction in hydrocarbon projects changes stress on faults. By matching the rate of earthquakes in the past, we can predict the future earthquake rate for different operation styles.

Geothermal reservoir imaging - we study the interaction of solar electromagnetic signals with the Earth to understand where, how large and how powerful our geothermal systems are.

Carbon sequestration - we use models to demonstrate safe and efficient ways to pump large amounts of CO2 underground so that it doesn't contribute to climate change.

NZ’s gas shortage was not caused by the offshore exploration ban – but it was still a flawed policy

Dec 02, 2024 23:37 pm UTC| Insights & Views Economy

Historically, gas in New Zealand traded below NZ$10 per gigajoule. When prices hit $50 per gigajoule in August this year, anyone with gas to sell could have made a lot of money. But there clearly wasnt much gas around....

Green hydrogen could decarbonise entire industries in NZ – but there’s a long way to go

Nov 25, 2024 23:41 pm UTC| Insights & Views Business

Hydrogen has been called the Swiss army knife of decarbonisation because it can do many things. But not all of them make sense. Today, the world uses about 100 megatonnes of hydrogen per year (MT/y), but this is...

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Economy

Amazon AI Models Shake Up Content Creation Game, Rival Adobe, and Meta With Nova Innovations

Amazon revealed its Nova foundation AI models at the AWS conference, a move poised to disrupt the competitive AI landscape. With advanced content creation tools, Amazon is taking a direct shot at Adobe and Meta. Amazon...

China Slams US Chips as ‘No Longer Safe’ Amid Rising Trade Tensions and Retaliatory Export Bans

Chinese industry groups have labeled US chips as unreliable and unsafe, urging businesses to turn to domestic alternatives. The warning follows heightened trade tensions, including Beijings retaliatory export ban on...

Yoon’s Martial Law Ends in Early-Morning U-Turn Amid National Assembly’s Fierce Pushback

South Korean President Yoon Suk Yeol reversed his martial law order early Wednesday after facing fierce opposition from the National Assembly. The surprise move was declared and rescinded within hours, and it has left the...

FxWirePro- Major Economic events for the day

Time (GMT) Currency Event Actual Previous Consensus 7:30 AM CHF CPI...

Politics

How will Donald Trump address the teacher shortage in 2025?

As Donald Trump assumes office in 2025, addressing the nationwide teacher shortage is among his administrations top priorities. With schools across the U.S. grappling with significant staffing challenges, Trumps proposed...

What are Donald Trump’s policies on protecting endangered species in 2025?

As Donald Trump prepares to take office in 2025, his policies on protecting endangered species are drawing both praise and scrutiny. Trump has pledged a comprehensive approach to conservation, aimed at balancing economic...

How will Donald Trump enhance disaster warning systems in 2025?

As President-elect Donald Trump prepares to re-enter the White House in 2025, one of his key promises centers on enhancing disaster warning systems nationwide. With natural disasters becoming increasingly frequent and...

Joe Manchin’s Bold Move: Calls on Biden to Pardon Trump as America Faces an Unprecedented Political Crisis

In a surprising political twist, Senator Joe Manchin has urged President Joe Biden to pardon President-elect Donald Trump. The West Virginia Democrats call comes as the nation grapples with an increasingly polarized...

Science

How will Donald Trump address renewable energy research funding in 2025?

President-elect Donald Trump has revealed plans to reshape the U.S. renewable energy landscape in 2025, sparking debates about the administrations commitment to combating climate change. While Trumps previous term focused...

RNA editing is the next frontier in gene therapy – here’s what you need to know

The United States Food and Drug Administration has just approved the first-ever clinical trial that uses CRISPR-Cas13 RNA editing. Its aim is to treat an eye disease called wet age-related macular degeneration that causes...

From using plant rinds to high-tech materials, bike helmets have improved significantly over the past 2 centuries

Imagine its the mid-1800s, and youre riding your high-wheeled, penny-farthing bicycle down a dusty road. Sure, it may have some bumps, but if you lose your balance, youre landing on a relatively soft dirt road. But as the...

Why does everything look flat even though the Earth is round?

Ever since the ancient Greeks first made observations of the circular Moon and the skies, scientists have known that the Earth is a sphere. Weve all seen beautiful images of the Earth from space, some photographed by...

Technology

Tesla Scores Big as Longtime Critic Turns Bullish, Boosting Price Target from $85 to $380

Teslas stock received a major boost as Roth MKMs Craig Irwin upgraded his rating from Neutral to Buy, raising the price target to $380. Irwin, a longtime Tesla skeptic, now sees Trump-backed policies and a growing...

Cybertruck Lease Prices Slashed 10% as Tesla Grapples with Demand Drop and Sales Goals

Tesla has cut Cybertruck lease prices by 10% in a bid to reinvigorate demand after exhausting its reservation backlog. Challenges such as high pricing and reduced range have prompted Tesla to introduce aggressive sales...

Apple's Foldable iPhone May Turn Around Plummeting Foldable Sales by 2026

Amid a sharp decline in foldable smartphone sales in 2024, hope emerges as Apple plans to launch its foldable iPhone in 2026. Analysts believe this move could significantly boost sales and reshape the foldable markets...

Tesla Rolls Out Apple Watch App with Key Access, Frunk Control, and Climate Features Next Week

Tesla has officially unveiled its highly anticipated Apple Watch app, offering features like key access, frunk control, and climate activation. The app is set to launch next week as part of Teslas latest update, enhancing...
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