Business Green: The world is on course to meet greenhouse gas emission targets set out under the Kyoto protocol, but only as a result of the collapse of eastern and central European economies in the 1990s. That is the stark warning issued yesterday by the UN climate change secretariat, which released new figures showing that while emissions in the 40 industrialised countries signed up to Kyoto are down five per cent on 1990 levels emissions have shown an upward trend since the turn of the …