BBC: Barack Obama will become the 44th president of the US as the world is engulfed in a global economic crisis, says Peter Seligmann. He calls on the new president not to ignore the environment, which is “rapidly reaching a tipping point”. What an odd juxtaposition of almost giddy anticipation and deep anxiety as we prepare for a US presidential inauguration that will be celebrated worldwide. Hopes for a new year and a new global leader of vision and courage collide with a …