
Marco, também tens isto:
“According to the Oil and Gas Journal (2009), proven reserves of oil worldwide at the end of 2009 amounted to 1,354 billion barrels — a marginally higher volume than estimated a year earlier and the highest level ever attained. Reserves have more than doubled since 1980 and have increased by one-third over the last decade. Half of the increase since 2000 is due to Canadian oil sands reserves; most of the remainder is due to revisions in OPEC countries, particularly in Iran, Venezuela and Qatar."
O problema que tu pões e tens razão é: o arco-iris . Mas como tu sabes a tecnologia tambem avança. E o que era impossivel ou custava muito a conseguir com o tempo fica mais facil e barato.
“According to the Oil and Gas Journal (2009), proven reserves of oil worldwide at the end of 2009 amounted to 1,354 billion barrels — a marginally higher volume than estimated a year earlier and the highest level ever attained. Reserves have more than doubled since 1980 and have increased by one-third over the last decade. Half of the increase since 2000 is due to Canadian oil sands reserves; most of the remainder is due to revisions in OPEC countries, particularly in Iran, Venezuela and Qatar."
O problema que tu pões e tens razão é: o arco-iris . Mas como tu sabes a tecnologia tambem avança. E o que era impossivel ou custava muito a conseguir com o tempo fica mais facil e barato.