Gas car supporters manoeuvre into global energy debate
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A growing global population means there are likely to be far more than the 850 million vehicles on the roads now, with an even greater demand for fuel than today.
At a United Nations Economic Commission for Europe (UNECE) partner event, fans of natural gas-powered cars explained why they could help meet tomorrow’s energy needs.
Daniel Johnson reports from the UN in Geneva.
Duration: 3'56"