[JURIST] The European Union [official website] on Tuesday insisted that it will enforce its new cap-and-trade law [EU Directive 2008/101/EC, PDF] on airline emissions for flights traveling to and from Europe despite strong opposition from the US. The new legislation, taking effect January 1, 2012, will eventually require all airlines, including those of non-EU countries, to pay for their carbon dioxide emissions in an effort to encourage airlines to use cleaner fuels and to economize fuel use. Those who do…