Action on energy efficiency could buy time to secure a global agreement on climate change, the International Energy Agency (IEA) said on Monday.
The IEA had previously warned world governments had until 2017 to strike a deal to avoid a carbon "lock in" and make sure temperatures remain within the agreed two-degree goal. It now believes they might have until 2022 to negotiate.
The new estimate is one of the main findings of the IEA's latest annual World Energy Outlook, published on Monday. Energy efficiency measures could halve global energy demand by 2035, according to the organisation.
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