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Thursday, November 4, 2010

Grim find

Not feeling especially effervescent today so here's something that reflects my mood.
I discovered this gruesome scene as I was walking through the carpark at a Bluegreens conference. One of those heartless Tories had collected this tiny bird with the front of his SUV.
Probably Nick Smith.


8 comments:

Anonymous said...

It wasn't run over with Gerry Brownlee's coal Lignite Diesel hummer than?

robertguyton said...

Ger wasn't ther.

Shunda barunda said...

I have a couple of diesel vehicles, as far as the internal combustion engine goes I think they are the "greenest" choice.
But I guess there will be an interesting ethics issue (especially for greenies) if all our diesel comes from lignite.

Anonymous said...

Biofuel made in New Zealand could be a good fuel source if our farmers want to get into the biofuel business.

Lignite Diesel is twice as high in emissions as normal Diesel, so it is not 'green' or 'greenish'.

robertguyton said...

Good comment anon. Lignite is brown, wanting to be black, which is not heading in the green direction at all!

Shunda barunda said...

So do they burn lignite to provide the energy to convert more lignite into oil? is that why you say twice the emissions?

robertguyton said...

Maybe anon knows Trevor29

Shunda – if carbon is burnt cleanly, it becomes CO2. For each atom of carbon, two atoms of oxygen are used. The Atomic weight of carbon (C) is about 12, whereas that of oxygen (O) is 16 so CO2 has a molecular weight of 44. 44/12 is 3.66 so each tonne of carbon creates 3.66 tonnes of CO2. The added 2.66 tonnes is the weight of oxygen consumed from the air. The active component of coal is almost all carbon, but there are inactive components as well. What I was querying was just how much of the lignite is not carbon.

I hope this helps to clear up the confusion.

Trevor.

Shunda barunda said...

I was thinking double the emissions compared to 'normal' diesel as anon suggested.
I assume the huge energy to convert lignite into oil (and then refined to diesel) generates more emissions than refining oil straight out of the ground.
Is that what anon meant? and is it true? (seems like an incredible inefficient process)