Tesla Motors receives $10bn in Model 3 pre-orders injust 2 days

Started by rcjordan, April 04, 2016, 11:29:07 AM

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rcjordan



Mackin USA

"It's kind of hard to beat gasoline" for public and environmental health, said study co-author Julian Marshall, an engineering professor at the University of Minnesota. "A lot of the technologies that we think of as being clean ... are not better than gasoline."

http://www.cbsnews.com/news/think-electric-cars-are-truly-green-not-if-their-power-comes-from-coal/
Mr. Mackin

littleman

I remember making the electric + coal = bad argument back in 1988, and it is.  Fortunately, in California we only use coal for 0.5% of our electricity generation.   It definitely would not be green in  a state with high coal consumption.

http://energyalmanac.ca.gov/electricity/total_system_power.html

rcjordan

Long tailpipe ...Green ...yada yada.  I don't know which to believe, but coal *looks* dirty.

Again, we still haven't addressed ships and other Big Smokers using bunker oil. Last I read, they account for about as much pollution as all the world's cars.

littleman

That's a good point.  Another one is meat, which is suppose to just about equal all transportation greenhouse gas production.  Just avoiding eating things with ruminating stomachs makes a big difference.

cows > sheep/goats > pigs > chicken > fish > shell fish

I am not sure if it was happening, but about 5 years ago I read an article that highlighted how some US chickens were being shipped to China for slaughter and processing, then shipped back to the US for consumption.

rcjordan

>ship to China

Shrimp, too.

One thought did occur to me about the old long-tailpipe studies. They likely did not account for the rapid up-take of wind & solar and those more green technologies generating eletricity.  Back then, viable options were fossil fuels or nukes.

Brad

Indiana gets most of it's electric from coal.  Thing is many coal plants are approaching end of life and because of public pressure and anticipated government regulation, they will not be replaced with new coal fired plants. 

Mackin USA

Mr. Mackin

rcjordan

"Even at its most efficient power setting, the big 14-cylinder engine consumes 1,660 gallons of heavy fuel oil per hour."

Yeah, it's heavy, alright. It's bunker oil ...it's so thick it has to be heated to flow. About half-way between asphalt and fuel oil.  Pretty much the dregs of the refining process.

So, when it comes to pollution, how many 1.8L automotive engine blocks does this thing equal?

http://www.amusingplanet.com/2013/03/the-largest-and-most-powerful-diesel.html

ergophobe

Quote from: littleman on April 04, 2016, 04:07:59 PM
That's a good point.  Another one is meat, which is suppose to just about equal all transportation greenhouse gas production.  Just avoiding eating things with ruminating stomachs makes a big difference.

cows > sheep/goats > pigs > chicken > fish > shell fish

Beef accounts for slightly more greenhouse gas emission than the entire transportation sector combined.

But at the same time, the way things are grown matters. From a cruelty perspective, grass-fed beef may be a lot better, but from a greenhouse perspective it's worse because grass-fed beef produces more methane.

And is farm-raised fish really better than chicken? Not sure. But wild caught fish is destroying the oceans because of industrial scale trawling.

As the saying goes "Looked at long enough, any simple problem becomes complex."

littleman

Quotecows > sheep/goats > pigs > chicken > fish > shell fish

That was just for greenhouse gas production, nothing else.  Farm raised mussels could be very close to carbon neutral.

Mackin USA

9 Things Everyone Should Know About Farmed Fish

http://articles.mercola.com/sites/articles/archive/2013/12/21/9-farmed-fish-facts.aspx

A major part of the problem is farmed shrimp which, like farmed fish, tends to be far more contaminated than its wild-caught counterparts.

http://articles.mercola.com/sites/articles/archive/2013/08/14/farmed-shrimp.aspx

And we've gone from Telsa to seafood LOL
Mr. Mackin