Putin attacks 'strange' European plans to reduce gas usage

Russian President Vladimir Putin on Wednesday rubbished European calls to reduce reliance on fossil fuels, saying that such ideas could lead to humans living in caves again.Speaking at an investment forum in Moscow, Putin also slammed shale gas production through fracking as dirty and environmentally damaging, saying Russia -- one of the world's top gas producers -- would never use this technology.Asked what he thought of Europe's moves to reduce use of gas, for which it is heavily dependent on