Will the hadron collider destroy the earth next year and is it worth the chance - yes or no?

Answer 1

Uh, no to the first question. The second question doesn't even apply, since there is no chance.

Some people are so afraid of technology that it would be funny if it weren't so tragic.

Quoted from the link below:
"CERN performed a study to investigate whether such dangerous events as micro black holes, strangelets, or magnetic monopoles could occur.[8] The report concluded, "We find no basis for any conceivable threat." For instance, it is not possible to produce microscopic black holes unless certain untested theories are correct. Even if they are produced, they are expected to be harmless due to the Hawking radiation process. Perhaps the strongest argument for the safety of colliders such as the LHC comes from the simple fact that cosmic rays of much higher energies than the LHC can produce have been bombarding the Earth, Moon and other objects in the solar system for billions of years with no such effects."

Answer 2

Absolutely not. The energies involved, while very concentrated, are still very minuscule over all--so don't worry.