Oil and gas supplies and their future use is a major variable for the 21st. century. On the one hand there is a demand to go to renewable sources. On the other hand is that oil and gas will be used for many years to come. Turkmenistan’s president said on September 3oth. that his country had the capacity to almost quadruple its natural gas exports in the next 20 years and was ready to meet demand from Europe. The discovery of a major gas field was announced three days ago.