Guardian: The world must burn less diesel and wood, Nobel peace prize-winner Al Gore said yesterday, as the soot produced is accelerating the melting of ice in polar and mountainous regions. Gore, backed by government ministers and scientists, said that the soot, also known as “black carbon”, from engines, forest fires and partially burned fuel was collecting in the Arctic where it was creating a haze of pollution that absorbs sunlight and warms the air. It was also being deposited on snow, …