Agence France-Presse: Earth may experience a radically different climate already within 34 years, forever changing life as we know it, said a study Wednesday that aims to bring the dangers of global warming into sharper focus. On current trends of greenhouse-gas emissions, 2047 will mark the year at which the climate at most places on Earth will shift beyond documented extremes, it said. This date is pushed back to 2069 under a scenario in which fossil-fuel burning emissions are stabilized, said an analysis of climate...