The Prince of Wales has launched an attack on climate change sceptics, describing them as the "headless chicken brigade" and accusing "powerful groups of deniers" of engaging in intimidation.

Charles, who has long campaigned to raise awareness of global warming and has hit out at sceptics in the past, unleashed his latest salvo during an awards ceremony at Buckingham Palace for green entrepreneurs.

"It is baffling, I must say, that in our modern world we have such blind trust in science and technology that we all accept what science tells us about everything - until, that is, it comes to climate science," the prince said in a speech on Thursday evening.

"All of a sudden, and with a barrage of sheer intimidation, we are told by powerful groups of deniers that the scientists are wrong and we must abandon all our faith in so much overwhelming scientific evidence."