But evidence that ITQs work is a powerful new hook to capture the political will and public attention needed to spread an idea that could avert an ecological disaster.

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It is an idea that has spread to cities around the world, such as Ottawa, Mexico City and Paris, but it started in Colombia when the streets were handed over to cyclists on a Sunday in the mid-1970s to encourage cycling in a safe environment.

BBC: Reclaiming the streets in Bogota

This idea is one that will likely spread to other parts of the nation.

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He wisely ensured that ownership of the idea was widely spread by delegating design of the new curriculum to several faculty committees.

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During the trial the court head that Taylor had tried "to spread around" the idea his wife was "in some way, losing her mind".

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Zigta s conviction that he was on the right track and that others should also benefit from his knowledge motivated him to spread his idea.

UNESCO: Title

When writing a blog, the key idea is to create content that other people will want to read and spread.

FORBES: How To Make Your Blog Get Real Attention

An alternative idea is that the greater diversity of amphibian species in virgin forest helps the fungus to spread.

BBC: Double whammy for the disappearing frogs

We do this by offering role models who demonstrate that success begins with a bold idea, that it is often created where nothing formerly existed, and that the resulting wealth can spread to every part of the nation.

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