While all trees absorb carbon dioxide – one of the gases linked to global warming – urban trees provide more environmental benefits than rural trees. By providing shade that reduces the need for air conditioning in summer, and by serving as windbreaks that reduces heating needs in winter, properly located and managed trees reduce the demand for carbon-emitting fossil fuels. Overall, researchers estimate that an urban tree can save 5 to 10 times more carbon than a rural tree. You can help make the most of these important environmental assets and find exciting job opportunities in the utility, municipal and commercial tree-care sectors. Entry-level positions usually require strong climbing skills – and after that, how high you climb is based on your skills and strengths, and the specific needs of your employer.