Tesla and other EVs have already saved 120k lives says study

According to a study from Nature Communications, Teslas alone have saved over 20,000 lives

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People are at risk from food and water shortages, flooding, high heat, an increase in disease, and economic loss due to climate change. Conflict and human migration are potential outcomes. Climate change has been named the biggest threat to world health in the 21st century, and it’s clear that taking prompt action to lessen its effects is of the utmost importance.

Amongst the many actions we can take to reduce our carbon footprint and amount of harmful emissions that can be directly tied to us, purchasing an electric vehicle is one that could surely have a long-lasting effect. Studies have found that the more drivers transition their gas cars to electric ones, the better for ozone levels and the decrease of particulate matter or “haze”. When EV adoption is coupled with switching our power generation to renewable energies, the positive impacts are even greater.

Back in 2011 the Tesla Roadster - the first serially produced lithium-ion battery vehicle - served as the face of the new EV Revolution and hinted at the possibility of fast, seductive, and opulent electric vehicles in the future. Worldwide sales of electric vehicles are now in the millions of units since its introduction, with Tesla accounting for almost 2 million of those sales.

But a high EV adoption rate not only means good news for the planet we currently live in. It also dramatically increases the survival chances of our children and grandchildren, the generations to come. According to a study published just last year in Nature Communications, "adding 4,434 metric tons of carbon dioxide in 2020 - equivalent to the lifetime emissions of 3.5 ordinary Americans - could cause one extra death globally in expectation during 2020-2100."

This is where electric vehicles can play their part. Let's look at Tesla's most recent impact report as an illustration. The average combustion vehicle emits 450 g CO2e every mile, or 68 metric tons over the course of a lifespan of 150,000 miles (241,401 km), according to that report. In contrast, the Model 3 emits 180 g CO2e/mile when charged through the American power grid, which is equivalent to 27 metric tons of carbon dioxide over the course of a lifetime.

We save around 40 metric tons of carbon over the course of a lifetime for every person who abandons their gas car for an electric vehicle. Tesla sales alone have saved our planet from around 80 million metric tons of carbon, assuming that most people would have gone with a gas car in an alternative universe where the electric revolution never happened.

According to the above-mentioned study, since every 4,000 metric tons of carbon emissions are predicted to result in an additional death, around 20,000 lives have been saved as a result. If we take into account the 10 million electric cars sold by other manufacturers, the number of lives saved increases to a staggering 120,000. Human lives are not the only direct beneficiaries of a higher EV adoption rate, however. Another study published by Northwestern university found that if EVs replaced 25% of combustion-engine cars currently on the road, the United States would save approximately $17 billion annually by avoiding damages from climate change and air pollution. In more aggressive scenarios -- replacing 75% of cars with EVs and increasing renewable energy generation -- savings could reach as much as $70 billion annually.

Many EV detractors mention that the electricity used to charge EVs still comes from fossil fuels, and therefore it balances out tail-pipe emissions savings. But this is not an accurate picture. Some electric charging stations even use renewable energy to charge EVs nowadays. However, EVs still result in fewer emissions overall even when their charging is coal powered. For example, electric vehicle use has resulted in a 20% reduction in greenhouse gas emissions in nations that rely heavily on coal, like China.

And sure, if done carelessly, EV battery manufacture might be dangerous to the environment. Nearly all EV emissions are ‘well-to-wheel emissions’ created during the battery production process. Because EVs are still a relatively new technology, the energy sources used to make batteries do not conform to industry standards, which increases the carbon footprint. But things are starting to change in this regard.

Compared to two years ago, the carbon footprint of modern EV batteries is two to three times smaller, and it is getting cleaner all the time. EV automakers are establishing standards for the suppliers of their batteries. For instance, they mandate that vendors exclusively produce using renewable energy sources like solar and wind. These sources can supply the substantial energy required to make EV batteries without producing damaging pollutants. Tesla, for example, intends to produce its batteries with only renewable energy.

Taking all these factors into consideration, we can only hope the EV Revolution is here to stay. We no longer have the luxury of being shy when it comes to reducing emissions and pollutants that are clearly accelerating climate change, and even though sometimes it can be easy to feel like there is not much we can do as individuals to prevent this, driving electric, while pushing for broader adoption of renewable power sources (including inside our own homes) is definitely a start.

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Tesla’s Robotaxis Have a Strange New Rear Bar — Here’s What We Know

@DirtyTesLa on X

We’ve already seen that Tesla’s Project Halo has some hardware modifications not found on consumer cars. While some of these upgrades, like the second communications unit, have a clear purpose, another change is a bit more confounding.

Early-access testers in Austin spotted a simple, flat, likely metal bar under the rear trunk of the Robotaxi Model Ys. While we’re still not sure what exactly this new bar is for, we do have some speculative ideas.

The community has also floated some fantastic theories, but Tesla clearly put it here, and on these Robotaxi vehicles, for a specific purpose. Grab your notepads, we’re about to do some theorycrafting.

Could Be Wireless Charging

By and far, the most plausible and exciting theory is that this bar is related to future wireless charging capabilities and testing.

For a Robotaxi network to scale efficiently, the entire process, from cleaning to charging, must be autonomous. Relying on a human to plug in each vehicle, or even a complex robot arm, introduces a logistical bottleneck and a potential point of failure.

The logical endpoint here is that wireless inductive charging is a game-changer. A vehicle simply parks over a designated pad at the depot to begin charging, without any interaction.

The metal bar is in the exact spot where Tesla could potentially mount testing gear, or even the vehicle-side receiver for more informal testing, without needing to commit to a wholly new underbody design.

Tesla previously acquired Wiferion, a German inductive charging technology company, and demoed the wireless charging solution at We, Robot. With a series of patents on beam steering and wireless charging circuits, Tesla has been hard at work building up their tech base to support wireless charging for Robotaxi.

@DirtyTesLa on X

What It Probably Isn’t

We’ve seen several other theories discussed, but they really begin to fall apart under closer scrutiny. 

The first is additional underbody protection. While it is potentially practical, the bar’s position is far too rearward to offer any additional protection to the high-voltage battery pack or the rear drive units. Additionally, Tesla prefers to integrate this type of protection directly into the vehicle’s Gigacasting. Tesla has already made significant improvements to the structural rigidity of the new Model Y’s Rear Casting, so this makes no sense.

Next up is a potential camera spray shield for the rearview camera. The centralized placement of the bar means it doesn’t actually protect from the rear wheels pushing road spray out and upwards. It simply won’t have an impact on the rear camera that we can see. 

Rounding up the theory crafting is a new aerodynamic part. However, the bar is flat and seems more like a mounting point than anything aero-related, such as the new rear diffusers spotted on the Model Y Performance. The bar likely makes more drag than it reduces.

Small Part, Lots of Ideas

When considering the logistical requirements of a large-scale autonomous vehicle fleet, wireless charging is a natural choice, especially given the mounting point. This simple metal bar is likely a preparatory step for Tesla to mount engineering samples for wireless charging in the near future.

If you’ve got any other ideas on what this could be, we’d love to hear what you think on social media.

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Tesla’s ‘Project Halo’ Revealed: The Upgraded Model Ys Behind the Robotaxi Network

@DirtyTesLa on X

While the performance of FSD has been the star of the Robotaxi Network, new details are emerging about Tesla using modified Model Ys for the service. According to a report from Business Insider, the program to modify some vehicles for Robotaxi is known internally as “Project Halo”, and it involves more than just a newer FSD version.

These details help connect the dots between the subtle physical changes that have been spotted on the Robotaxi Model Ys.

Physical Clue: Expanded Rear Housing

Eagle-eyed observers in Austin were quick to spot a key physical difference on the Robotaxi fleet vehicles: a larger-than-normal housing on the rear window. This immediately sparked speculation that Tesla had integrated new components to support the Robotaxi rollout. We initially expected that these may have been minor changes like Tesla is known to roll out, but now we have a better idea of what exactly is under that new housing.

Halo Communications Unit

According to the insider source, Tesla’s Halo vehicles are equipped with a second telecommunications unit. That’s a significant change from customer vehicles, which are equipped with just a single unit near the roof of the vehicle.

According to the report, this unit serves a dual purpose. It provides redundant, high-precision GPS data, and most importantly, allows the vehicle to maintain a constant, reliable connection with Tesla’s Robotaxi support team. That includes connectivity for teleoperation, if necessary. This hardware may be the physical backbone for the human assistance portion of the pilot phases of Robotaxi.

As we saw in the command center image shared by Ashok Elluswamy, these vehicles are streaming video from six cameras, potentially putting too much of a strain on the vehicle’s single cellular modem.

Not a Tesla App

Probably Not Starlink

While we initially mused that this could be holding a Starlink Mini dish, the space taken up by the housing is far too small to permit the installation of a Mini. Instead, it is approximately the same size as the telematics control unit that Tesla installs in the ceiling of its newer vehicles, which include a 5G modem.

Tesla is likely using the second connection for redundancy or to increase data throughput.

Quickly Iterating on FSD

All that data throughput likely serves a third purpose as well - providing live data streaming for Tesla’s Robotaxi Operations Hub back at Gigafactory Texas. That isn’t necessarily for support teleoperations, as we previously mentioned.

It is likely that Tesla is pulling video data from the Robotaxis to quickly improve the current version of Unsupervised FSD. Early-access testers noticed that in just a day, Tesla was issuing improvements, which means data is moving from vehicle to training in a snap.

Yesterday robotaxi would get like an inch away from this wall (first video) while pulling up. I saw 4 different Robotaxis do it.

Today it seems fixed. I've seen 2 robotaxis. Is Tesla really changing things this quickly? pic.twitter.com/zfdchBL771

— Dirty Tesla (@DirtyTesLa) June 24, 2025

But Elon Said!

Well before the launch, Elon said that the vehicles used for Robotaxi would be unmodified vehicles coming straight from the factory. It seems that isn’t exactly true, but it could be in the future.

So, how can we reconcile the unmodified statement with the clear evidence of Project Halo hardware? The key here lies in the difference between a stock Tesla’s FSD capabilities, versus the operational hardware required to run a commercial Robotaxi service.

Elon’s entire point is that the fundamental FSD hardware — the cameras, sensors, and FSD computer — is standard on every car coming off the line. From a capability standpoint, a consumer car can perform Unsupervised FSD.

The second communications unit is best understood as service hardware. They don’t make the car drive better, but they provide the redundant connectivity needed for operational oversight, remote assistance, and the massive data uploads required for a pilot program.

This hardware may also be necessary for Tesla to meet regulatory compliance requirements for a commercial autonomous vehicle service for the foreseeable future.

These are unmodified Tesla cars coming straight from the factory, meaning that every Tesla coming out of our factories is capable of unsupervised self-driving! https://t.co/n94ln0Uas6

— Elon Musk (@elonmusk) June 10, 2025

Camera Cleaning

The Business Insider report also mentioned that Halo vehicles would have self-cleaning cameras. That isn’t a new hardware feature; in fact, it appears to refer to the software feature where Robotaxis can thoroughly clean its front-facing cameras [video and details], which will eventually make its way to owner vehicles.

Wrapping Up

The insider confirmation of Project Halo and its specialized hardware helps to provide a clearer picture of exactly what Tesla is doing with Robotaxi. It seems that for now, it’s not simply just consumer cars running advanced hardware, it’s a fleet of very lightly purpose-modified vehicles meant to support the pilot rollout.

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