Fossil fuels energy production from

The use of hydrogen for electric energy production from fossil fuels in large centralised plants will contribute positively to achieve important reductions of C02... 

We have seen in Subsection 3.6.2 that a significant amount of anthropogenic sulfur dioxide is emitted into the troposphere by energy production from fossil fuels. In spite of the fact that the removal of this species in the lower layers of the atmosphere is rather fast, we cannot exclude the possibility that a certain fraction of this sulfur gas reaches the stratosphere. However, it is estimated (SMIC, 1971) that this S02 quantity is negligible compared to that due to the volcanic activity. 

M. Steinberg, H.C. Cheng, Modern and Perspective Technologies for hydrogen production from fossil fuels. Int. ]. Hydrogen Energy, 14, (1989) 797. 

M. Steinherg, and H. Cheng, Modem and prospective technologies for hydrogen production from fossil fuels. Proceedings of the 7th World Hydrogen Energy Conference, Moscow, 699 (1988)... 

STEINBERG, M., CHENG, H.C., Modem and Prospective Technologies for Hydrogen Production from Fossil Fuels, Int. J. Hydrogen Energy 14 (1989) 797-820. 

Polylactic add is indeed attractive for certain purposes, because the energy needed in its production from fossil fuels is about 30% less than for other plastics. It has disadvantages, though. It does not tolerate heat as well and is about 30% more expensive that common plastics that can be used for the same purpose. The price issue has legal aspects as well— no environmental taxes must be paid for products made of polylactic acid. 

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