The state of Vermont in the US would likely greet Luigi’s news about less flatulent fodder with horror, if there were any Acacia or Sesbania there. Vermont has one of the fastest-growing alternative energy programmes in the US, all based on the prodigious output of its vast dairy herd. Better yet, methane is a much more effective greenhouse gas than carbon dioxide. So burning methane is win-win: less methane, and less carbon dioxide than non-renewable power-station fuels. via Grist.