A recent study of New York City's vegetation found that a remarkable amount of the city's vehicle carbon emissions – plus that of some neighboring areas – are absorbed by grasses and trees. On many summer days not only are all of the carbon emissions from buses, cars and trucks soaked up by the area's greenery, but some additional emissions are as well. The research team plans to expand their study of the city's trees to species types to uncover their specific benefits. "More trees are always going to be better, no matter what they are. But we could use an assessment of which ones are the best," said Dardan Wei, the lead author of the study.