Guardian: Rich countries have been slow to launch the "fast start" climate funds promised at Copenhagen, the world’s least developed nations complained today as negotiators wrestled with a finance package to keep the UN climate talks process on track. World leaders agreed last year to inject $30bn (£19bn) into forestry and other efforts to tackle climate change between 2010 and 2012. Ahead of bigger, more long-term financing, the "fast-start" money was designed to build trust among poorer …