16:20 Caroline Lucas

I will not because I have only two minutes. It is clear that globally we already have around five times more fossil fuel reserves than we can safely burn. The bottom line is that building this whole new fossil fuel industry is the very last thing the UK should be doing, especially if we are serious about securing a deal at the Paris climate talks.

The argument that shale gas is lower carbon than coal stacks up only if minimum methane emissions can be guaranteed. Recent studies suggest worrying rates of methane leakage from US shale operations. The inventor of the monitoring device routinely used by the industry warns that a fault in his invention means that historical estimates of leakage are severely underestimated. That means that fracked gas may not be better than coal in greenhouse gas emissions after all.

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