Guardian: Shale offers freedom and security – but it could be a trap

Wars are fought over energy. So vital is it to the economy that the few custodians of the world's oil and gas wealth have the power to determine global booms and recessions.

At last, it seems, a new source of energy might liberate us from this conflict – fossil fuels trapped within dense rock for millennia that we are now able to free, thanks to advances in engineering unthinkable a decade ago, and that are available in countries from Britain to Australia. But those same fossil fuels, much higher in carbon than their conventional counterparts, are likely to unleash runaway climate change that could put paid to any hopes of a low-cost – and low-risk – energy future.

Exploiting these new forms of energy – shale gas and oil entails greenhouse gas emissions that will far outstrip our ability to adapt to the climate change they will cause. But history shows we are unlikely to be able to leave any of these chaos-causing fuels unexploited. For most of the past 30 years, the main question for the US has been how to ensure enough energy to meet the economy's needs. The oil shocks of the 1970s showed the economy's vulnerability to foreign imports. Since then, the goal of "energy security" has been crucial.  MORE