Comments on: The dirt on Black Carbon

By: Marian

Marian — Fri, 02 Sep 2011 23:16:59 +0000

“What you say is true and I should have spelled it out. It might be another reason the warmists need to use the word black, to exclude diamond.”

Wouldn’t they be laughable a campaign against diamond mining to stop Global Warming.

Something James Hansen could tag onto his No coal mining shenanigans.

By: Richard Treadgold

Richard Treadgold — Thu, 01 Sep 2011 21:24:33 +0000

Hi Richard!

What you say is true and I should have spelled it out. It might be another reason the warmists need to use the word black, to exclude diamond.

By: Yet Another Richard

Yet Another Richard — Thu, 01 Sep 2011 13:09:43 +0000

A minor nit-pick.
Not all carbon is black, merely the amorphous and hexagonal crystal forms. The tetrahedral crystals are renowned for their colourless clarity.

(translation: soot and graphite are black, diamonds are clear and colourless, except for minimal metallic contaminants.)

By: Richard Treadgold

Richard Treadgold — Thu, 01 Sep 2011 04:37:27 +0000

That’s interesting to know, Jim. It wouldn’t take too much to install a few modern kilns fired by either coal dust or gas to make a proper difference both to the economics of brick-making and to the environment.

By: Jim McK

Jim McK — Thu, 01 Sep 2011 02:58:08 +0000

I once spent a few weeks in the Punjab which is basically a very productive flat basin surrounded by mighty mountains. It is heavily populated and trees are scare. Bricks are in high demand and the major method of local brick production is in small kilns using car tyres as fuel. The air gets pretty thick and visibility can get down to a few km’s or less.

And then it rains and within an hour the Hindu Kush 100km away is crystal clear in all its glory.