You've been slacking on your groening intake SA chris. In futurama they dump all their crap into space, and it comes back as a giant garbage meteorite that threaten's earth's very existence. Fry saves the day by launching an even bigger rocket of garbage at it, dismissing it's likely return with a "tsk who cares, we'll all be long gone by then."
Was it on here that I heard this worrying statistic? - that if every bit of industry, every car, every powerstation and all aviation in the uk was to stop producing co2 tomorrow, within 2 years the expansion of industry in India and China would have made up the shortfall of our cessation of CO2 production.