Fighting Bushfires Goes High Tech With Laser Drones, Sensors And Satellites

SYDNEY—In October, a sensor mounted on an 8.5-metre pole in the Australian countryside detected small particles in the air near a timber plantation and sent out an alert.

When plantation staff arrived, they found a small man-made fire that was already under control, but the incident offered a glimpse of how authorities hope to use new technology to battle bushfires that have grown increasingly intense in recent years.

As a new fire season begins in Australia—a recent bushfire ravaged about half of Fraser Island in the country’s east—researchers are looking to rely more on technology to find blazes quickly and better predict their path.

A monthslong government inquiry into the devastating 2019-2020 fire season in Australia, which killed more than two dozen people and burned an area bigger than Washington state, concluded that authorities need to be better prepared and recommended that officials work with the private sector to develop new technology.

“We’re still detecting fires with people in towers and binoculars. We’ve got to move beyond that,” said Leigh Kelson, program director at FireTech Connect in Australia, a government-funded effort to help startups develop new firefighting technologies. Firefighters also rely on the equivalent of 911 calls to find new blazes.

The ideas researchers are exploring include fitting drones with lasers that can map dry areas at higher fire risk and whether satellites can detect extreme fire behaviour.

Last fire season, authorities were surprised by how quickly the blazes spread and how long they burned, which they later attributed to a prolonged drought that had left the land parched with plenty of dry vegetation to fuel the flames. Last year was Australia’s hottest year on record, according to the government’s Bureau of Meteorology, and fires are projected to become more intense and frequent because of climate change.

Parts of Australia have received more rainfall in recent months, and the current fire season isn’t expected to be as severe. Still, firefighters have struggled to control some of the blazes. The fire on Fraser Island, the largest sand island in the world and a Unesco World Heritage site, prompted officials to tell some residents to evacuate from homes in the path of the flames. On Sunday, firefighters said rainfall had finally helped to contain that blaze, which started in mid-October.

Other regions, including the western U.S. and even in frosty Siberia, have experienced particularly intense fire seasons recently, stretching global firefighting resources and making early detection of fires more crucial. Fires left unchecked can create their own weather systems, raining embers down on nearby communities and pushing dangerous smoke into big cities and even to neighbouring countries.

The sensor that picked up the October fire near the timber plantation is one of more than 40 in a network that covers an area nearly double the size of New York City in Australia’s Victoria state. The solar-powered, cylinder-shaped sensors are packed with instruments including optical and thermal cameras, flame detectors, particle counters for air quality, and ground-vibration readers. The data are publicly available online in real-time.

Attentis Pty. Ltd., a Melbourne, Australia-based company, finished installing the network in early 2019 as a pilot project to demonstrate the technology. They didn’t get much use detecting fires last season because the blazes were too far away.

Cameron McKenna, managing director at the company, said he is in talks to install similar sensor networks to improve fire detection capabilities in other parts of the country. “We use multiple methods of detection as opposed to a single method,” he said.

In Canberra, Australia’s capital, researchers are working with a local firefighting agency to install video cameras on four fire towers. One tower will also have a thermal camera installed.

A computer program will scan images from the thermal camera to detect fires, and a person will monitor the other video feeds. Researchers plan to develop a computer program to automatically scan the video feeds too, said Marta Yebra, director of the Australian National University Bushfire Initiative. The idea is to determine whether the cameras detect new fires quicker than the old-fashioned way of having a person in the fire tower, she said.

Rohan Scott, who leads the rural fire service in the Canberra area, said people in towers on average spot fires within seven minutes of ignition. But the towers are only staffed on high-risk days.

“If we can get detection 24/7 but at the same speed as a human-manned fire tower, then I think that would be a good outcome,” he said. “Anything quicker than that would be a definite bonus.”

Other ideas involve using drones fitted with lasers to create detailed maps so authorities know which areas have more dry vegetation and present a higher fire risk. One recent effort involved researchers poring over satellite imagery in an attempt to build a model for detecting extreme fire behaviour from orbit. They found that changes in smoke colours could help predict fire behaviour, according to the Minderoo Foundation, a nonprofit that sponsored the research.

One company, Fireball.International Pty. Ltd., says its machine-learning method can detect smoke from ground-based cameras and fires from heat signatures on thermal-satellite images. Its system is already being used by a big power company in California, and Fireball plans to begin pilot programs in Australia this fire season, executives said.

A prototype of the system detected smoke from fires within 15 minutes of ignition, while averaging less than one false positive a day per camera, according to an analysis published in a peer-reviewed journal in January. It said there is room for improvement.

“People are beginning to realise, ‘Gosh, we really can detect a fire in the first five minutes,’” said Tim Ball, an academic and co-founder of the company who is also a former firefighter.

For some vacationers, the ideal getaway involves $1,200 ozone therapy or an $1,800 early-detection cancer test.

Call it the longevity vacation. People who are fixated on optimising their personal health are pursuing travel activities that they hope will help them stay healthier for longer. It is part of a broader interest in longevity that often extends beyond traditional medicine . These costly trips and treatments are rising in popularity as money pours into the global wellness travel market.

At high-end resorts, guests can now find biological age testing, poolside vitamin IV drips, and stem-cell therapy. Prices can range from hundreds of dollars for shots and drips to tens of thousands for more invasive procedures, which go well beyond standard wellness offerings like yoga, massages or facials.

Some longevity-inspired trips focus on treatments, while others focus more on social and lifestyle changes. This includes programs that promise to teach travellers the secrets of centenarians .

Mark Blaskovich, 66 years old, spent $4,500 on a five-night trip last year centred on lessons from the world’s “Blue Zones,” places including Sardinia, Italy, and Okinawa, Japan, where a high number of people live for at least 100 years. Blaskovich says he wanted to get on a healthier path as he started to feel the effects of ageing.

He chose a retreat at Modern Elder Academy in Mexico, where he attended workshops detailing the power of supportive relationships, embracing a plant-based diet and incorporating natural movement into his daily life.

“I’ve been interested in longevity and trying to figure out how to live longer and live healthier,” says Blaskovich.

Vitamins and ozone

When Christy Menzies noticed nurses behind a curtained-off area at the Four Seasons Resort Maui in Hawaii on a family vacation in 2022, she assumed it might be Covid-19 testing. They were actually injecting guests with vitamin B12.

Menzies, 40, who runs a travel agency, escaped to the longevity clinic between trips to the beach, pool and kids’ club, where she reclined in a leather chair, and received a 30-minute vitamin IV infusion.

“You’re making investments in your wellness, your health, your body,” says Menzies, who adds that she felt more energised afterward.

The resort has been expanding its offerings since opening a longevity centre in 2021. A multi-day treatment package including ozone therapy, stem-cell therapy and a “fountain of youth” infusion, costs $44,000. Roughly half a dozen guests have shelled out for that package since it made its debut last year, according to Pat Makozak, the resort’s senior spa director. Guests can also opt for an early-detection cancer blood test for $1,800.

The ozone therapy, which involves withdrawing blood, dissolving ozone gas into it, and reintroducing it into the body through an IV, is particularly popular, says Makozak. The procedure is typically administered by a registered nurse, takes upward of an hour and costs $1,200.

Longevity vacationers are helping to fuel the global wellness tourism market, which is expected to surpass $1 trillion in 2024, up from $439 billion in 2012, according to the nonprofit Global Wellness Institute. About 13% of U.S. travellers took part in spa or wellness activities while traveling in the past 12 months, according to a 2023 survey from market-research group Phocuswright.

Canyon Ranch, which has multiple wellness resorts across the country, earlier this year introduced a five-night “Longevity Life” program, starting at $6,750, that includes health-span coaching, bone-density scans and longevity-focused sessions on spirituality and nutrition.

The idea is that people will return for an evaluation regularly to monitor progress, says Mark Kovacs, the vice president of health and performance.

What doctors say

Doctors preach caution, noting many of these treatments are unlikely to have been approved by the Food and Drug Administration, producing a placebo effect at best and carrying the potential for harm at worst. Procedures that involve puncturing the skin, such as ozone therapy or an IV drip, risk possible infection, contamination and drug interactions.

“Right now there isn’t a single proven treatment that would prolong the life of someone who’s already healthy,” says Dr. Mark Loafman, a family-medicine doctor in Chicago. “If it sounds too good to be true, it probably is.”

Some studies on certain noninvasive wellness treatments, like saunas or cold plunges , do suggest they may help people feel less stressed, or provide some temporary pain relief or sleep improvement.

Linda True, a policy analyst in San Francisco, spent a day at RAKxa, a wellness retreat on a visit to family in Thailand in February. True, 46, declined the more medical-sounding offerings, like an IV drip, and opted for a traditional style of Thai massage that involved fire and is touted as a “detoxification therapy.”

“People want to spend money on things that they feel might be doing good,” says Dr. Tamsin Lewis, medical adviser at RoseBar Longevity at Six Senses Ibiza, a longevity club that opened last year, whose menu includes offerings such as cryotherapy, infrared sauna and a “Longevity Boost” IV.

RoseBar says there is good evidence that reducing stress contributes to longevity, and Lewis says she doesn’t offer false promises about treatments’ efficacy . Kovacs says Canyon Ranch uses the latest science and personal data to help make evidence-based recommendations.

Jaclyn Sienna India owns a membership-based, ultra luxury travel company that serves people whose net worth exceeds $100 million, many of whom give priority to longevity, she says. She has planned trips for clients to Blue Zones, where there are a large number of centenarians. On one in February, her company arranged a $250,000 weeklong stay for a family of three to Okinawa that included daily meditation, therapeutic massages and cooking classes, she says.

India says keeping up with a longevity-focused lifestyle requires more than one treatment and is cost-prohibitive for most people.

Doctors say travellers may be more likely to glean health benefits from focusing on a common vacation goal : just relaxing.

Dr. Karen Studer, a physician and assistant professor of preventive medicine at Loma Linda University Health says lowering your stress levels is linked to myriad short- and long-term health benefits.

“It may be what you’re getting from these expensive treatments is just a natural effect of going on vacation, decreasing stress, eating better and exercising more.”

Fighting Bushfires Goes High Tech With Laser Drones, Sensors And Satellites

Australia’s fire season looms and researchers are looking to move beyond ‘detecting fires with people in towers and binoculars’.

The latest trend in wellness travel is somewhere between a spa trip and a doctor’s appointment

Vitamins and ozone

What doctors say