Green truckin': US finalizes new heavy-vehicle pollution standards

I'm an automotive powertrain engineer by trade.

Would you like to try again or just admit you're out of your depth?

 

What are you even talking about?

 

Your claim is false.
My argument is confirmed by EV performance over the last 15 years.
ICE performance 120 years ago drove rapid infrastructure development to meet surging demand.

 

And anyone can be whatever they want on the interwebs
Claiming credentials is yet another losing argument for you.

https://ourworldindata.org/co2-and-greenhouse-gas-emissions
https://www.epa.gov/ghgemissions/overview-greenhouse-gases
http://www.climate.gov/news-features/understanding-climate/climate-change-atmospheric-carbon-dioxide
https://ourworldindata.org/co2-emissions

That it also occurs naturally does not mean Co2 is not pollution.

Oil occurs naturally, oil spills are pollution
Wildfires occur naturally but the smoke is still a pollutant
Methane occurs naturally but cow farts are still pollution

I'll stack my facts against your "creds" all day.

 

Great.

You'll have to get used to losing.

By the way, did those EPA cites actually say CO2 is a "pollutant"?

 

Lose?
to you and your "creds?"

 

No. Lose to the fact that I know what I'm talking about.

So, did those EPA cites actually say that CO2 is a pollutant?

 

What you're taking about?

100% you say?

"Cars emit a potent cocktail of exhaust gases, many of which have harmful effects. They include:

• Carbon dioxide (CO2) – CO2 is a greenhouse gas, thought to be a major contributing factor to climate change. Although technically non-toxic, excessive volumes contribute towards ocean acidification.
• Carbon monoxide (CO) – This invisible gas is the result of incomplete combustion of fuel and is very toxic to humans. Most modern engines only produce tiny amounts of it thanks to efficient combustion processes, but older engines are bigger offenders.
• Nitrogen oxides (NOx) – Nitrogen oxides are produced in any combustion process. They are highly reactive and can contribute to smog when they come into contact with other airborne chemicals. Some manufacturers famously cheated NOx tests.
• Sulfur dioxide (SO2) – This is a colourless gas that smells like burnt matches and occurs naturally in crude oil used to refine petrol and diesel. It forms acids when burned, leading to engine corrosion and smog.
• Hydrocarbons (HC) – HCs escape from exhausts as unburnt fuel due to incomplete combustion. They also evaporate from the fuel tank and nozzle when you fill up at the petrol station.
• Benzene (C6H6) – This occurs naturally in petrol and diesel in very small quantities and is also emitted from vehicle exhausts as unburnt fuel. Benzene is a carcinogenic substance and high levels of inhalation can severely harm human health.
• Particulates – Diesel engines emit airborne particles of black soot and metal, known as particulate matter. Modern cars are fitted with diesel particulate filters (DPFs) to reduce the number of harmful particles being pumped out into the atmosphere.

What you "know."
Got math?

 

Definitely a good point, but I would think this would be difficult to legislate and enforce. Trucks travel in and out of cities and on highways.

 

OK. I guess you're conceding that even EPA never says CO2 is a pollutant.

Since you're now trying to make a big deal of trace exhaust components (after CO2, H2O, and Nitrogen, there's not much room left).

Perhaps you can quantify how much of those actual pollutants come out of the tailpipe.

Oh, and DPFs were replaced by SCR in 2010. You might want to check newer references.

 

Your arguments are just all over the place. First you start talking about Clinton-era regulations. Then you talk about definitions of pollutants. Then you mention catalytic convertors. And after all that falls flat on it's face, you shift to "EV trucks suck".

Pollution is still a major problem in our cities. It was during Clinton-era, and it is now. This is not CO2 related. It's other regulated pollutants. It's from ICEs, and trucks can be particularly problematic. Diesel burning produces more harmful pollutants. Catalytic convertors are not perfect. Engines must be up to a certain temperature for them to operate. So cars and trucks both release unabated harmful pollutants into the atmosphere during that "startup" time. Think about this, and then ask yourself, "Where are most trucks started?". The answer - Most likely industrial areas in cities and counties, or bordering counties. That's where the trucking company headquarters are typically located, and that's where most of the motels/hotels are, where truckers stay.

As for your comment "EV trucks suck", I think you should start rephrasing that to "I think EV trucks suck".

 

Wrong about the exhaust.

Wrong about the effects.

But you go on and hang your entire argument on the word "pollutant" because, well,

IT IS IRRELEVANT

Creds? BWAHAHAHAHAHA

 

If the rest of the vehicles on American roads sere of reasonable size, weight and power, we wouldn't even notice the pollution of heavy vehicles. If we can diminish what they put out, so much the better, but they are so far from being the source of the problem that it is almost laughable.

 

I would if it weren't demonstrable.

 

No doubt. Americans love their huge vehicles. I used to drive a Smart car. We were on the Interstate once, and a huge SUV traversed 3 lanes, to go out of his way, to intentionally cut us off.

 

It is a genuine sickness.

 

CO2 is not a pollutant that is a fact!

 

CO2 can be a pollutant, given that certain concentrations can cause illness or death.

 

Sure it can cause illness or death. Like if you're in a spaceship and your air scrubber breaks down. Or if you're under water and drowning.

That doesn't make it a pollutant. Even the EPA doesn't call it a pollutant. Ever. Because that would be a lie and be really bad for the agency.

 

Heard of hydrogen - on second thought don’t bother Aus will get there first

 

Anything in excess can be a pollutant

 

Lols! They forget bout the NOX diesel produces

https://clean-carbonenergy.com/nox-emissions.html

 

Not according to the experts, EPA.

No, you can't mangle the language to get what you want like everything else progressive.

 

So tell me, exactly how much NOx does a modern diesel engine produce?

 

Well, Therin lies the problem - it is not just one diesel engine is it?