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Old 06-08-2019, 05:25 PM
 
Location: Pacific Beach/San Diego
3,755 posts, read 2,487,724 times
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Quote:
Originally Posted by 509 View Post
According to the Democrat Party life on earth will end in 12 years unless we do something about global warming. Right now, they are blaming President Trump for doing nothing. OK.

Back in 1973, I was living and Canada and the Arab countries decided to quit shipping oil to the US. I needed to drive from Vancouver to San Francisco a couple of weeks after the boycott started.

The THREE Republican Governors, Washington(Evans), Oregon(McCall), California(Reagan), immediately lowered the speed limit to 55 MPH to save gas. Evans in Washington dropped it to 50 MPH, but later raised it back to 55 MPH. They also ordered that streetlights be shut off after 10:00?? pm and all businesses were to shut their outside lights and signs when closed.

It was weird driving down I-5 with only an odd business sign lit, and all the streetlights off. We as college students, drove all night long. But it was I thought a appropriate response by the Governors to an emergency.

So here we are almost 50 years later. This time talking about life on the planet ending in 12 years. The Democrats say they want to impose TAXES to save the planet. Well, instead of taxes how about 55 MPH. The amount of CO2 generate by vehicles is significantly less at 55 MPH and transportation is a MAJOR contributor to C02 generation.

Washington, Oregon and California are very, very liberal states these days committed to combating global climate change. One Governor, Inslee is running for President on this issue alone. He is that committed to reducing C02.

Ah, but there is President Trump. EXCEPT speed limits are set by the states, not the Federal Government. Just like in 1973, we can have 55 MPH speed limits on I-5, with the streetlights off, OVERNIGHT.

All we need is for the three Democrat governors to commit to saving the planet and dropping the speed limit to 55 MPH......TOMORROW or AS SOON AS POSSIBLE.

If you live in one of these states.....write the Governors and ask them to SAVE THE PLANET...SPEED LIMIT 55.
Or you could actually do other things like make cars more fuel efficient and use more renewable resources - - you know, the type of stuff Trump and his sycophants try to block at every turn.
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Old 06-08-2019, 05:32 PM
509 509 started this thread
 
3,007 posts, read 4,091,751 times
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Quote:
Originally Posted by TristramShandy View Post
Or you could actually do other things like make cars more fuel efficient and use more renewable resources - - you know, the type of stuff Trump and his sycophants try to block at every turn.
The problem with fuel efficiency is simple physics and the density of air.

We are at the point where cars are very well designed to cut through air. The other variable is weight, but really on the interstates it is about overcoming air density.

For Renewables to work...you need 70% power that you can ramp up quickly....usually natural gas. So even with renewables and electric cars a significant portion of your transportation will emit CO2 and the easiest way to reduce CO2 is drive 55.

You can't do it....just drive 55 MPH and reduce you CO2 footprint.

LOOK IT WAS THE law from 1973 to 1995!!! When President Clinton, decided to go with big oil instead of protecting the earth!!

Last edited by 509; 06-08-2019 at 05:48 PM..
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Old 06-08-2019, 05:44 PM
 
32,496 posts, read 26,373,528 times
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Quote:
Originally Posted by 509 View Post
Its not.

I can go back and find the citations. IF YOUR CONSERVING OIL, you are GENERATING LESS CO2.

Pretty much it has to do with simple physics and overcoming the dam air that a vehicle must plow through to maintain speed. Above 55 MPH your pushing much more air and consuming much more fuel.

So dropping to 55 MPH does significantly reduce CO2 emissions. I was surprised at how much it really saved.

In Washngton state, Inslee and other Governors have destroyed over 200,000 acres of endangered shrub-steppe habitat in the state. Countless birds are killed every year. Now the Inslee is proposing a carbon tax similar to that in BC, where my diesel was 7.00 dollars a US gallon last month.

Look...I don't want my landscape and birds destroyed by windmills. I don't want to pay SEVEN dollars plus for diesel fuel......but I WILL DRIVE 55.

what you mention was true back in the 70s and 80s, but given the changes in vehicles today, IE improved technology, improved aerodynamics, etc. it isnt as true today as it was back then.



back in the 70s and 80s, cars had the aerodynamics of a barn, today however they are much closer to small brick. thus it doesnt take as much power to push the car through the air at higher speeds. als with modern lubricants, modern tires, etc. every thing just works better than 40 years ago.
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Old 06-08-2019, 05:51 PM
 
Location: Divided Tribes of America
13,733 posts, read 5,534,314 times
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It wouldn’t reduce CO2 by that much. Do you get dramatically better fuel economy at 55 vs. 65? I don’t.

To make a BIG dent in CO2 emissions, we’d need to switch most electricity generation to nuclear fission and then electrify transportation as much as possible.

There are new nuclear reactor designs that are much safer than traditional designs:

https://www.npr.org/2019/05/08/72072...aper-and-safer
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Old 06-08-2019, 05:51 PM
509 509 started this thread
 
3,007 posts, read 4,091,751 times
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Quote:
Originally Posted by rbohm View Post
what you mention was true back in the 70s and 80s, but given the changes in vehicles today, IE improved technology, improved aerodynamics, etc. it isnt as true today as it was back then.



back in the 70s and 80s, cars had the aerodynamics of a barn, today however they are much closer to small brick. thus it doesnt take as much power to push the car through the air at higher speeds. als with modern lubricants, modern tires, etc. every thing just works better than 40 years ago.
That's true, but the aerodynamics of cars hasn't changed much in 30 years. That was the simple part.

The problem with driving above 55 MPH is the aerodynamics....laws of physics. NO judge or Congress can repeal them.
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Old 06-08-2019, 06:03 PM
 
4,587 posts, read 901,341 times
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Why is 55 mph often the speed limit and why are many cars electronically limited to 155 mph?
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Old 06-08-2019, 06:06 PM
 
Location: Long Island
33,089 posts, read 13,961,392 times
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This is not a problem near most cities. LOL


We would love to get to 55 MPH but yes 70MPH is wasteful and dangerous at times.
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Old 06-08-2019, 06:48 PM
 
Location: Atlanta, GA (Sandy Springs)
5,172 posts, read 2,827,418 times
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I don't think newer cars are that much more efficient at 55 than 65 or 70.
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Old 06-08-2019, 06:49 PM
 
10,117 posts, read 6,332,855 times
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Yep, we did this once before. Never again.
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Old 06-08-2019, 06:59 PM
509 509 started this thread
 
3,007 posts, read 4,091,751 times
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Quote:
Originally Posted by elan View Post
Yep, we did this once before. Never again.
Not even to save the planet??

Driving 50 MPH will reduce CO2 emissions by 30%.

https://www.wired.com/2010/06/50-mph...urb-emissions/

From the European Environmental Agency

https://www.eea.europa.eu/themes/transport/speed-limits

Transport is the only sector whose greenhouse emissions increased between 1990 and 2008. Transport’s total GHG output rose 25 % in the 32 EEA member countries (this excludes the international maritime and aviation sectors), accounting for 19.5 % of total emissions. CO2 is the main component of transport greenhouse gas emissions (99 %) and road transport is, in turn, the largest contributor to these emissions (around 94 % in 2008), thus accounting for 18.2% of total emissions.

Really....NEVER AGAIN??
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