Agence France-Presse: Environment ministers of the world’s top polluters entered a final round of climate change talks Friday with agreement expected on stemming the loss of biodiversity. The three days of talks in Sicily, buoyed by a sea change in US environmental policy, have also found new momentum towards a landmark deal to fight global warming at the end of the year. US delegate Lisa Jackson said Thursday she brought a “message of hope” from US President Barack Obama, who already boasts having …