As the world gets hotter, millions of workers face up to the challenge of heat stress and productivity losses

Published

2 years ago

July 5, 2023

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Europe was gripped by punishing heat waves in the summer of 2022, with wildfires, droughts and deaths highlighting what many around the world already know: Weather extremes can have devastating, real-world consequences.

When it comes to temperatures in warmer months, the direction of travel seems to be going one way.

The U.K.’s Met Office is projecting that summers in the country will be between 1 and 6 degrees Celsius warmer by 2070, and as much as 60% drier. It adds that global heat waves linked to climate change are likely to increase. Just this week it said last month was the U.K.’s hottest June on record.

The overall picture is challenging. In May 2023, the World Meteorological Organization said there’s “a 98% likelihood that at least one of the next five years, and the five-year period as a whole, will be the warmest on record.”

Sectors bearing the brunt

Fox and his co-authors are not alone in highlighting the difficulties of a hotter world.

In 2019, the International Labour Organization published a report which contained some sobering details.

“The economic losses due to heat stress at work were estimated at US$280 billion in 1995,” the U.N. agency said.

This, it added, “is projected to increase to US$2,400 billion in 2030, with the impact of heat stress being most pronounced in lower-middle- and low-income countries.”

The ILO’s report also highlighted which sectors would likely bear the brunt of rising average temperatures.

Workers in Italy picking grapes, August 2022. People who work outdoors are expected to be significantly affected by rising average temperatures.

Marco Bertorello | AFP | Getty Images

Those working in construction and agriculture, it said, were “expected to be the worst affected, accounting for 60 per cent and 19 per cent, respectively, of working hours lost to heat stress in 2030.”

Heat stress is a serious matter. The ILO describes it as referring to “heat received in excess of that which the body can tolerate without physiological impairment.”

Other outdoor jobs may be affected, too. In his interview with CNBC, Fox highlighted the potential challenges faced by workers in oil refineries, gas plants and chemical works.

All the above roles, he said, involve “quite a lot of external activity,” with workers also needing to wear personal protective equipment, or PPE, thanks to the nature of their job.

“This clothing can be quite cumbersome … and quite hot to wear, even under cold conditions,” Fox said.

That in turn makes employees “particularly at risk or vulnerable to … these sort of conditions.”

Factories are another area of concern. Fox noted that buildings of this type haven’t particularly been designed with heat ingress — especially extreme heat ingress — in mind.

“They’re full of equipment that’s generating a lot of heat, and it’s very difficult for factories, buildings, big warehouse buildings, to passively cool themselves,” he said.

Air conditioning is common in offices, but that’s not the case everywhere, he added.

Fox noted that office buildings in countries with temperate climates, like the U.K., “can get quite hot” because not a lot of air-conditioning had been installed.

Tackling the problem

The overall situation appears grave. For many, preparation and adaptation will be crucial.

The IMechE says this will involve “changes to the design of buildings, infrastructure and other physical assets and systems, both with regard to those that already exist and those that are yet to be built or manufactured, as well as the work, educational, leisure and other activities that humans undertake.”

In a statement issued alongside its report in April, the organization said it also wanted an urgent update to “guidance related to heat impacts on the workforce” so firms can come up with plans and enact changes in their working environments.

At the time, Laura Kent, the IMechE’s public affairs and policy advisor, referenced the challenges authorities face.

“We acknowledge that it would be difficult for the Health and Safety Executive to set a meaningful upper temperature limit due to variations between industries in both working conditions, required PPE and workload,” she said.

“However, HSE guidance needs to be updated to support sectors and industry in the development of appropriate strategies.”

The HSE did not respond to CNBC’s request for comment ahead of this story’s publication.

A street sweeper cools off at a fountain in Ronda, Spain, on July 21, 2022.

Jorge Guerrero | AFP | Getty Images

In other parts of the world, plans are being made to ban work when it’s too hot.

In May, for instance, Spain’s Minister of Labour and Social Economy, Yolanda Díaz, tweeted that carrying out “certain jobs during daylight hours” in extreme temperatures would be prohibited.

Speaking to reporters, Díaz said such prohibitions would take effect when AEMET, the State Meteorological Agency, issues red or orange weather alerts.

Citing Spain’s Labour Ministry, Reuters said the move would affect roles in sectors like agriculture and street cleaning. According to Reuters, in the summer of 2022 a street-sweeper in Madrid died from heatstroke.

Trade unions are also making their voice heard when it comes to working in extreme conditions.

Take Unite the Union, which has a presence in Britain and Ireland. It’s listed a range of advice provided by its health and safety representatives to both workers and employers.

Among other things, it stresses the importance of adequate ventilation for internal workspaces, the provision of cover for workers who are in direct sunlight, and stopping all work in extreme conditions.

Stock picks and investing trends from CNBC Pro:

Among a wide range of actions, Fox stressed the importance of design in creating safe and comfortable working environments in the face of hotter weather.

He said there needs to be a completely new approach to cooling that does not rely on the use of air conditioning, which has a significant environmental footprint.

“We need to explore … more traditional solutions of natural ventilation, use of shade, internal courtyards,” Fox said.

He noted that there’s “an awful lot” that can be done to prepare for the future. Raising awareness would be key. “In many cases, industries and workforces are just not aware that this challenge is coming, and are not preparing for it,” he said.

On top of that, identifying priorities in research and development and updating engineering methodologies and approaches would be needed.

Unless something is done, there will be, “in the coming years and decades, an increase in the economic impact of more extreme heat waves and just the general raising of the ambient seasonal temperature,” Fox warned.

Environment

US solar sets new records as renewables nearly match natural gas – EIA

Published

3 hours ago

June 26, 2025

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US solar sets new records as renewables nearly match natural gas – EIA

Pittsburgh Airport solar — Photo: BlueSky PIT

Solar provided over 10% of total US electrical generation in April, wind and solar produced almost one-quarter, and the mix of all renewable energy generated nearly a third, according to data just released by the US Energy Information Administration (EIA).

Solar set new records in April and the first third of 2025

EIA’s latest monthly “Electric Power Monthly” report (with data through April 30, 2025), which was reviewed by the SUN DAY Campaign, confirms that solar continues to be the fastest-growing source of US electricity.

In April alone, electrical generation by utility-scale solar (>1 MW) increased by 39.3% while “estimated” small-scale (e.g., rooftop) solar PV increased by 11.8%. Combined, they grew by 31.3% and provided 10.7% of US electrical output.

Utility-scale solar thermal and PV expanded by 42.4% while that from small-scale systems rose by 11.4% during the first third of 2025 compared to the same period in 2024. The combination of utility-scale and small-scale solar increased by 32.9% and was almost 7.7% of total US electrical generation for January-April, up from 6.1% a year earlier.

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As a result, solar-generated electricity easily surpassed hydropower output, at 6.0%. In fact, solar is now producing more electricity than hydropower, biomass, and geothermal combined.

Wind is still the renewable energy leader

Wind turbines produced 12.6% of US electricity in the first four months of 2025. Their output was 5.9% greater than the year before.

In April alone, wind provided 13.9% of US electricity supply, essentially equal to the share provided by coal.

Wind and solar now outproduce coal and nuclear

During the first third of 2025, electrical generation by wind plus utility-scale and small-scale solar provided 20.3% of the US total, up from 18.5% during the first four months of 2024. In just the month of April, solar plus wind accounted for 24.6% of US electrical output.

During the first four months of this year, the combination of wind and solar provided 20.2% more electricity than did coal, and 13.8% more than US nuclear power plants. In April alone, the disparity increased significantly when solar + wind outproduced coal and nuclear power by 77.1% and 40.2%, respectively.

Renewables are closing in on natural gas

The mix of all renewables (wind and solar plus hydropower, biomass, and geothermal) produced 10.3% more electricity in January-April than they did a year ago (9.7% more in April alone) and provided 27.7% of total US electricity production compared to 26.3% 12 months earlier.

Electrical generation by the combination of all renewables in April alone reached a new record and provided 32.8% of total US electrical generation. Moreover, renewables are now approaching the share provided by natural gas (35.1%), whose electrical output actually dropped by 4.4% during the month.

For perspective, five years ago, in April 2020, the mix of renewables provided 24.4% of total electrical generation while natural gas accounted for 38.8%.

Consequently, the mix of renewables has further strengthened its position as the second largest source of electrical generation, behind only natural gas, with the gap closing rapidly.

Ken Bossong, the SUN DAY Campaign’s executive director, noted:

Solar is now the fastest-growing major source of electricity and is generating more than hydropower, biomass, and geothermal combined, while wind plus solar provides more electricity than either coal or nuclear power, and the mix of all renewables is nearly matching the output of natural gas.

Yet, the Trump administration and the Republican Congress are seeking to pull the rug out from underneath renewables in favor of dirtier and more expensive fossil fuel and nuclear technologies. What are they thinking?

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Environment

Here’s a look at the Kia EV4 GT before you’re supposed to see it [Video]

Published

3 hours ago

June 26, 2025

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Here's a look at the Kia EV4 GT before you're supposed to see it [Video]

Kia’s upcoming EV4 GT is gunning for the Tesla Model 3 Performance, but it’s expected to undercut the price. Could this be the affordable electric sports car we’ve been waiting for? A new video shows the Kia EV4 GT driving on US streets ahead of its debut.

Kia EV4 GT is testing in the US ahead of its debut

After launching it in Korea in April, some are already calling Kia’s first electric sedan “a box office hit.” The EV4 was the best-selling domestic electric sedan in Korea in May, its second month on the market.

Kia’s electric sedan starts at just 41.92 million won, or around $30,000 in Korea. When it arrives in the US and Europe, the entry-level EV is expected to start at about $35,000 to $40,000 (€35,000).

With its sleek, fastback silhouette, the EV4 already looks like a sports car, making it an ideal candidate for a high-performance upgrade. All the EV4 needs is a little added power. Don’t worry, Kia plans to turn up the heat very soon.

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We caught our first glimpse of the interior earlier this month after a prototype was spotted outside of a Kia facility in Korea.

A new video is giving us a closer look at the Kia EV4 GT being tested in the US for the first time. The video from the folks at KindelAuto reveals a few design elements you can expect to see, like Kia’s vertical LED headlights with its signature Star Map lighting.

Although it’s still covered, you can expect to see Kia’s new Tiger Face grille design, which aligns with its latest electric models, including the EV9 and EV3.

Kia EV4 GT-Line (Source: Kia)

We will have to wait until closer to launch for final prices and specs, but like Kia’s other GT vehicles, the EV4 GT is expected to feature an AWD dual-motor powertrain.

It will sit under the EV6 GT, which boasts 576 hp, enabling a 0 to 60 mph sprint time of 3.4 seconds. Will the smaller EV4 GT top it? With recent advancements in battery and powertrain technology, it wouldn’t be a surprise.

Kia EV4 GT-Line (Source: Kia)

Kia will launch the EV4 in the US later this year with an EPA-estimated driving range of up to 330 miles. Additionally, it will feature a built-in NACS port, allowing it to recharge at Tesla Superchargers. With the base model expected to start at around $35,000, the high-performance GT variant could cost around $50,000 to $55,000.

In comparison, the Tesla Model 3 Performance starts at $54,990 with an EPA-est range of 298 miles. It can also accelerate from 0 to 60 mph in just 2.9 seconds.

Would you pick the Kia EV4 GT for around $50,000, or are you sticking with the Tesla Model 3 Performance? Got a better option in mind? Drop us a comment below.

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Environment

Xiaomi received over 200,000 real orders for its Tesla killer in just 3 minutes

Published

4 hours ago

June 26, 2025

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Xiaomi received over 200,000 real orders for its Tesla killer in just 3 minutes

Xiaomi has confirmed receiving over 200,000 real orders for its Tesla killer, the YU7, in just three minutes. We are referring to actual orders, with a soon-to-be non-refundable deposit.

Today, Xiaomi launched its second vehicle, the YU7, coming just four years after establishing its EV division and less than a year after introducing its first car, the SU7.

For years, we laughed at the media calling every new EV a ‘Tesla killer’, but over the last few weeks, we have reported how the YU7 might be the first real one.

At the launch event, CEO Lei Jun was not shy about making comparisons to Tesla.

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While the CEO praised the automaker for its leading efficiency and ADAS system, Lei Jun released a series of slides that favorably compared the YU7 to the Model Y.

It started with a comparison of the entire dimensions of both vehicles (image translated via Google):

Xiaomi’s CEO then claimed that the new YU7 had a significantly quite cabin with much less road noises than Tesla’s best-selling SUV (image translated via Google):

In my first drive of the YU7, I did note that the cabin was ultra quiet and demonstrated it briefly in my Youtube video about the new electric SUV:

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The double-panned acoustic glass all around helps with that, but the vehicle’s suspension is also optimized for noise, as well as active noise cancellation throughout the car.

Xiaomi also claimed that the vehicle, especially its electro-shading sunroof, was able to keep the cabin much cooler in extreme heat than Tesla’s Model Y (image translated via Google):

Lei Jun even shared a tweet that he posted about challenging Tesla Model Y’s best-selling crown and then truly went on the attack with pricing.

Ahead of today’s event Xiaomi had already shared a lot of information about the YU7, but pricing was the last significant piece of the puzzle.

The CEO decided to release with a direct comparison of each variant to Tesla’s own Model Y variant, and it was pretty brutal.

The base YU7 starts at just 253,500 RMB (equivalent to $35,300 USD) – 10,000 RMB less than Tesla, and it offers more than 200 extra km in range (image translated via Google):

As for the YU7 Pro, it starts at 279,900 RMB (equivalent to $39,000 USD), more than 30,000 RMB less than Tesla’s Model Y Long Range and it also compares quite favorably on the main features, including range (image translated via Google):

Finally, the YU7 Max was announced at 329,900 RMB (equivalent to $46,000 USD), 25,000 RMB less than Model Y Performance, and the specs are not even close:

With these incredibly favorable comparisons to Tesla’s best-selling SUV, it’s not surprising that Xiaomi has received record demand for the YU7.

It reported having received over 200,000 orders for the new electric vehicle within 3 minutes of opening orders at 10PM local time on Thursday.

It’s also important to note that these orders represent a genuine show of interest. This is not a Cybertruck situation where Tesla claimed to have over 1 million reservations, but ended up only selling about 50,000 units.

People ordering the vehicle need to place a 5,000 RMB (~700$) deposit, which only remains refundable for a few days before the order becomes locked in.

Xiaomi has already started production of the YU7 and made units available for delivery (with configurations limited to those pre-arranged by their designers) for almost immediate delivery.

Electrek’s Take

It’s hard to overestimate just how much this shook up the industry. At an average sale price of $40,000, that’s about $8 billion in sales that Xiaomi booked in 3 minutes.

I would expect the tally to increase past 400,000 in the coming days, and it will likely lock up a significant portion of potential buyers in the segment, particularly Model Y, for an extended period.

Tesla was already experiencing problems in China and had to offer record incentives to maintain its sales, but it will now face even greater challenges in the second half of the year.

I expect that Tesla will quickly launch its lower priced stripped down Model Y to try to help demand following this beating.

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