Boris Johnson has welcomed Joe Biden's 11.4-billion-dollar pledge as "very good news" for his bid to encourage wealthy countries to fund climate action. <br />Arriving at Washington DC's Union Station, the prime minister said leaders were still "a long way" from the $100 billion target but added: "There's no question that this American action today has been a big lift and will really help us to get there." Report by Buseld. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn
