Guardian: Four major loopholes in the Copenhagen draft texts could see carbon emissions increase by 2020, rather than plunge as scientists say must happen to avert dangerous global warming. That is the conclusion of a new analysis by Friends of the Earth, who argue the loopholes would cause greenhouse gases to rise by 10% by 2020, compared with 1990 levels, if they are not closed in the final four days of negotiations at the UN summit. The most serious loophole is known as “hot air”. Countries …