Are there multiple sources for an emissions inventory?
For instance, how debated is the UNFCCC GHG inventory? (http://unfccc.int/ghg_data/items/3800.php)
And is there any international inventory that has an emissions breakdown like the Australian governments? (http://ageis.climatechange.gov.au/#)
I see. But visible light communication, I assume, would be completely blocked by opaque matter. Correct?
Would it be theoretically possible for quantum tunnelling to enable digital communication? And could this be used over long distances?