Mexico earthquake death toll rises to 248

A Russian military helicopter gunship accidentally fired on spectators during war games in western Russia, injuring several people, news reports said on Tuesday.

People around the whole world are feeling the impact of climate change, extreme weather events, terrorism, rising numbers of refugees and renewed protectionism. But how can these challenges be confronted? And where is mankind ultimately heading?

Despite some differences, China and the US are the two most interdependent countries in the world economically and, increasingly, diplomatically. But how can they come together to help solve regional and global problems and maintain their own growth while providing development opportunities for the rest of the world?