TY  - SER
AU  - Nicholls,Tom
TI  - Huge Opec investment in upstream oil capacity needed, says IEA
PY  - 2010///
CY  - 
PB  - 
N2  - Transcripción del resumen del autor. The world is cutting down on carbon emissions, but it will continue to rely heavily on Opec oil, says the IEA. Tom Nicholls reports
ER  -