Agence France-Presse: Vegetation will release far less extra carbon dioxide in a warming world than previously assumed, giving humans a bit more room in the fight against climate change, scientists reported recently. Despite this good news, efforts to curb greenhouse-gas emissions must still be stepped up to avoid dire climate impacts, the researchers cautioned. Earth`s plants and soil microbes absorb and exude huge quantities of heat-trapping carbon dioxide, the main driver of global warming. Over the course of a...