Financial Times: High quality global journalism requires investment. Please share this article with others using the link below, do not cut & paste the article. See our Ts&Cs and Copyright Policy for more detail. Email ftsales.support@ft.com to buy additional rights. http://www.ft.com/cms/s/0/3a27dd62-809c-11e5-a01c-8650859a4767.html#ixzz3qLh3oEno The UKs climate change credentials are under fire again after it emerged it had spent 2.2bn in poor countries to help build coal power plants and other fossil fuel energy...