The Arctic is a diverse but fragile ecosystem  Mineral extraction is not a clean process [1] and the Arctic is acknowledged as a fragile ecosystem. In addition to the pollution that using these fuels will cause elsewhere in the world, the process of extraction itself is fraught with risks. There is some destruction caused simply by the process of building and running rigs with everything running normally, but the nightmare scenario is a major spill. [2] Let’s be clear, with the best will in the world, there will be a spill; difficult and unpredictable conditions, gruelling tests for both the machinery and the engineers that manage it, and a track record that leaves a lot to be desired in far more habitable and accessible environments. There are two difficulties posed in terms of an off-shore (or below-ice in this case) spill. The first problem is that stopping the spill would be vastly more complicated logistically than anything previously attempted, making previous deep-sea containment exercises seem simple by comparison. [3]  The Exxon Valdez disaster showed the large scale damage that oil spills near the poles can have large and long lasting effects on the ecosystem; hundreds of thousands of seabirds were killed in the spill and it is estimates some habitats will take 30 years to recover. [4] Any such disaster is made much worse above the arctic circle because of the cold. Oil degrades faster in warmer waters because the metabolism of microbes that break the oil down works much more slowly in the cold arctic waters, at the same time the oil spreads out less so provides less surface area. [5] In 2010 it was reported that more than two decades after the spill there were still 23,000 gallons of relatively un-weathered oil in Prince William Sound. [6]  The second issue, as demonstrated by large scale experimentation in the 1970s is that the oil would interact with the Polar ice to affect a far larger area than would normally be the case.  At the very least, it seems sensible to have a moratorium on sub-glacial drilling until the technology is available to deal safely and securely with a spill.  [1] Bibby, N. Is Norman Baker Serious about Saving the Environment? Liberalconspiracy.org. 18 march 2012.   [2] McCarthy, Michael, The Independent. Oil exploration under the arctic could cause ‘uncontrollable’ natural disaster. 6 September 201   [3] Vidal, John, ‘Why an oil spill in Arctic waters would be devastating’, The Guardian, 22 April 2011,   [4] Williamson, David, ‘Exxon Valdez oil spill impacts lasting far longer than expected, scientists say’, UNC News Services, 18 December 2003, no.648,   [5] Atlas, Ronald M., et al., ‘Microbes &amp; Oil Spills – FAQ’, Fisheries and Oceans Canada, 22 April 2013,   [6] National Oceanic and Atmospheric Administration, ‘Intent to Prepare a Supplemental Environmental Impact Statement on the Exxon Valdez Oil Spill Trustee Council’s Restoration Efforts’, Federal Register, Vol.75., No. 14, 22 January 2010, p.3707