The president of Intel Capital, one of the biggest venture capital investors, has warned that his industry is on the brink of another dangerous asset price bubble, particularly in so-called "cleantech" environmentally friendly technologies.

Arvind Sodhani told the Financial Times yesterday: "The biggest challenge for venture capital companies is when valuations get out of whack - this always ends in pain, and we've started to see a little bit of that in the recent past.