Inter Press Service: The midpoint of a conference on climate change in which tremendous hope has been invested; unsurprising then that demonstrations of popular desire for decisive action against global warming took place around the world. Candlelight vigils were held in 139 countries Saturday, halfway through the Conference of Parties (COP15) to the United Nations Framework Convention on Climate Change. In Copenhagen itself, in Halmtorvet near the site of a parallel conference organised by civil …