Deutsche Presse Agentur: The upcoming United Nations summit in Mexico on climate change will likely focus on achieving “a comprehensive set of decisions” but not an overall agreement, Mexico’s climate ambassador said Thursday in Stockholm. Luis Alfonso de Alba visited the Swedish capital after attending a round of preparatory talks that ended last week in Bonn, Germany, without apparent progress ahead of the UN summit in Cancun, which will get underway at the end of November. “We are aiming at a …