This monograph (a preferable term here to ‘book’, I believe) was conceived after I had done a good deal
of broadcasting, within the UK and internationally, on the Gulf Coast oil spill. Time is always limited in a
broadcast, and facts and valid perspectives need to be got across succinctly to the exclusion of shallow
comments which hardly leave a viewer or listener any better informed. I like to go to a broadcast having
made a few jottings from news sources which as well as being possible material for the broadcast have
attuned my mind to the topic shortly before I go on air....
The utilisation of renewable energies is not at all new; in the history of mankind
renewable energies have for a long time been the primary possibility of generating
energy. This only changed with industrial revolution when lignite and hard coal
became increasingly more important. Later on, also crude oil gained importance.
Offering the advantages of easy transportation and processing also as a raw
material, crude oil has become one of the prime energy carriers applied today.
Cold seeps occur in geologically active and passive continental margins, where pore
waters enriched in methane are forced upward through the sediments by pressure gradients. The
advective supply of methane leads to dense microbial communities with high metabolic rates.
Anaerobic methane oxidation presumably coupled to sulphate reduction facilitates formation of
carbonates and, in many places, generates extremely high concentrations of hydrogen sulphide in
Near-Surface Geochemistry – Near-surface
geochemistry methods can be used to detect shortterm
rapid loss or long-term intermittent leakage
of CO2 from GS formations. These techniques
are routinely employed in the environmental
consulting industry and include monitoring soil gas
and shallow groundwater. In general, both consist
of purging the monitoring point and collecting a
sample, followed by analysis and interpretation.
Soil gas can be collected with sorbents, sample
tubes, or Tedlar bags, depending on the compounds
expected and the detection level.
Water quality. Water draining off newly graded surfaces and roads or oil
or water accidentally discharged during oil and gas production can
increase the amount of sediment, salt, and pollutants discharged into
rivers and streams, thereby degrading them. In addition, shallow aquifers
can be polluted if required protective measures are not in place, and the
production of methane gas from coal beds can deplete shallow aquifers
that serve as domestic water sources.