But people are not buying the idea that, unless we act, the planet is doomed.
Once carbon dioxide is in the atmosphere, it tends to stay there for at least a century, unless absorbed by the planet's "carbon sinks", such as forests and oceans.
Unless we restore the planet's energy balance and stabilise climate, by rapidly reducing fossil fuel emissions, we will leave today's young people a rapidly deteriorating climate system with consequences that will out of their control.
But here's a safe bet: in 25 years I won't be on the planet, unless of course I get my tentacles on some of that rejuvenating blood.
But it is hard to distinguish between the two, and speculative trading provides essential liquidity to the markets.In any case, speculators could easily avoid a Tobin tax, unless every country on the planet agreed to implement it.
The actor Charlize Theron, who takes a leading role in the new Mad Max movie as a one-armed warrior driving five sex slaves to safety, has expressed her fears that a bleak future awaits the planet unless global warming is addressed.
Even if it has seemingly logical evidence behind it, its usually a conspiracy spawned by the United States Government, the scummiest nation on the planet (unless its the Liberal party, because they're pretty edgy).
Unless the distant planet enjoys a similar level of technological sophistication and is only a quarter of the way through W itself and doesn't want us spoiling the story.
The movies rarely examine the natural end of life (unless the whole planet is doomed and we're all going down).
