You already know that using solar and wind power can influence the climate by reducing our dependence on heat-trapping fossil fuels. Now scientists say these renewable forms of energy can change the climate more directly — and do it in ways that might surprise you.
Global warming may cut the amount of dust blown into the atmosphere from the Sahara Desert by up to 100 million tonnes a year, starving the Amazon rainforest of nutrients and turning up the heat in the north Atlantic.
