Indo-Asian News Service: An extra billion people will face water shortage, cereal production in developing countries will drop and coastal regions will face more damage from floods and storms because of delay in combating climate change, says a leading expert. The world should be prepared to face far worse effects of global warming than it is facing now, Martin Parry, a professor at the Imperial College in London, said in the backdrop of little substantial progress at the Dec 1-12 climate summit …