along with arctic ice, the rich world's smugness will melt...,

guardian | I have no idea what is coming to Europe and North America this winter and next summer, in the wake of the record ice melt, but it's unlikely to be pleasant. Please note that this record represents a loss of about 30% of Arctic sea ice, against the long-term average. When that climbs to 50% or 70% or 90%, the impacts are likely to be worse.

Our governments do nothing. Having abandoned any pretence of responding to the environmental crisis during the Earth summit in June, now they stare stupidly as the ice on which we stand dissolves. Nothing – or worse than nothing. Their one unequivocal response to the melting has been to facilitate the capture of the oil and fish it exposes.

The companies that caused this disaster are scrambling to profit from it. On Sunday Shell requested an extension to its exploratory drilling period in the Chukchi Sea, off the north-west coast of Alaska. This would push its operations hard against the moment when the ice re-forms and any spills they cause are locked in. The Russian oil company Gazprom is using the great melt to try to drill in the Pechora Sea, north-east of Murmansk. After turning its Arctic lands in the Komi republic into the Niger delta of the north (repeated oil spills are left unremediated in the tundra), Russia wants to extend this industry into one of the world's most fragile ecosystems, where ice, storms and darkness make decontamination almost impossible.

As I write, activists from Greenpeace, whom I regard as heroes, are chained to Gazprom's supply vessel, preventing the rig from operating. These people are stepping in where all governments have failed. David Cameron, who still claims to lead the greenest government ever, is no longer hugging huskies. In June he struck an agreement with the Norwegian prime minister "to enable sustainable development of Arctic energy". Sustainable development, of course, means drilling for oil.

Is this how our children will see it: that we destroyed the benign conditions that made our world of wonders possible, and then used the opportunity to amplify the damage? All of us, of course, can claim to have acted with other aims in mind, or not to have acted at all, as the other immediacies of life seemed more important. But – unless we respond at last – the results follow as surely as if we had sought to engineer them.

Stupidity, greed, passivity? Just as comparisons evaporate, so do these words. The ice, that solid platform on which, we now discover, so much rested, melts into air. Our pretensions to peace, prosperity and progress are likely to follow. "And like the baseless fabric of this vision, / The cloud-capp'd towers, the gorgeous palaces, / The solemn temples, the great globe itself, / Yea, all which it inherit, shall dissolve."