In mid-August, TomDispatch’s Michael Klare wrote presciently of the oncoming global oil glut, the way it was driving the price of petroleum into the “energy subbasement,” and how such a financial “rout,” if extended over the next couple of years, might lead toward a new (and better) world of energy. As it happens, the first good news of the sort Klare was imagining has since come in. In a country where the price of gas at the pump now averages $2.29 a gallon (and in some places has dropped under $1.90), Big Oil has begun cutting back on its devastating plans to extract every imaginable drop of fossil fuel from the planet and burn it. Oil companies have also been laying off employees by the tens of thousands and deep-sixing, at least for now, plans to search for and exploit tar sands and other “tough oil” deposits worldwide.

In that context, as September ended, after a disappointing six weeks of drilling, Royal Dutch Shell cancelled “for the foreseeable future” its search for oil and natural gas in the tempestuous but melting waters of the Alaskan Arctic. This was no small thing and a great victory for an environmental movement that had long fought to put obstacles in the way of Shell’s exploration plans. Green-lighted by the Obama administration to drill in the Chukchi Sea this summer, Shell has over the last nine years sunk more than $7 billion into its Arctic drilling project, so the decision to close up shop was no small thing and offers a tiny ray of hope for what activism can do when reality offers a modest helping hand.

As Klare makes clear today, when it comes to the burning of fossil fuels, reality — if only we bother to notice it — is threatening to offer something more like the back of its hand to us on this embattled planet of ours. He offers a look at a future in which humanity, like various increasingly endangered ecosystems including the Arctic, may be approaching a “tipping point.”

Read more: Tom Dispatch