If you shout "fire" in a crowded theatre, when there is none, you understand that you might be arrested for irresponsible behaviour and breach of the peace. But from today, I smell smoke, I see flames and I think it is time to shout. I don't want you to panic, but I do think it would be a good idea to form an orderly queue to leave the building.
Because in just 100 months' time, if we are lucky, and based on a quite conservative estimate, we could reach a tipping point for the beginnings of runaway climate change. That said, among people working on global warming, there are countless models, scenarios, and different iterations of all those models and scenarios. So, let us be clear from the outset about exactly what we mean.
The concentration of carbon dioxide (CO2) in the atmosphere today, the most prevalent greenhouse gas, is the highest it has been for the past 650,000 years. In the space of just 250 years, as a result of the coal-fired Industrial Revolution, and changes to land use such as the growth of cities and the felling of forests, we have released, cumulatively, more than 1,800bn tonnes of CO2 into the atmosphere. Currently, approximately 1,000 tonnes of CO2 are released into the Earth's atmosphere every second, due to human activity. Greenhouse gases trap incoming solar radiation, warming the atmosphere. When these gases accumulate beyond a certain level - often termed a "tipping point" - global warming will accelerate, potentially beyond control.
Faced with circumstances that clearly threaten human civilisation, scientists at least have the sense of humour to term what drives this process as "positive feedback". But if translated into an office workplace environment, it's the sort of "positive feedback" from a manager that would run along the lines of: "You're fired, you were rubbish anyway, you have no future, your home has been demolished and I've killed your dog."
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Today is just another Friday in August. Drowsy and close. Office workers' minds are fixed on the weekend, clock-watching, waiting perhaps for a holiday if your finances have escaped the credit crunch and rising food and fuel prices. In the evening, trains will be littered with abandoned newspaper sports pages, all pretending interest in the football transfers. For once it seems justified to repeat TS Eliot's famous lines: "This is the way the world ends/Not with a bang but a whimper."
But does it have to be this way? Must we curdle in our complacency and allow our cynicism about politicians to give them an easy ride as they fail to act in our, the national and the planet's best interest? There is now a different clock to watch than the one on the office wall. Contrary to being a counsel of despair, it tells us that everything we do from now matters. And, possibly more so than at any other time in recent history.
It tells us, for example, that only a government that was sleepwalking or in a chemically induced coma would countenance building a third runway at Heathrow, or a new generation of coal-fired power stations such as the proposed new plant at Kingsnorth in
Deflecting blame and responsibility is a great skill of officialdom. The most common strategies used by government recently have been wringing their hands and blaming
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