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Trees in tropical climates have, on average, larger, brighter, and more abundant leaves than non-tropical climates. A study of the girth of 70,000 trees across Africa has shown that tropical forests fix more carbon dioxide pollution than previously realized.
Our national forests and the trees that stand on them are a vital public resource. It’s time for the Forest Service to wake up and manage them in accordance with our current climate reality.
Trees are cut down for use as building material, timber or sold as fuel (sometimes in the form of charcoal or timber), while cleared land is used as pasture for livestock and agricultural crops. The vast majority of agricultural activity resulting in deforestation is subsidized by government tax revenue . [ 89 ]
Deforestation in the United States was affected by many factors. One such factor was the effect, whether positive or negative, that the logging industry has on forests in the country. Logging in the United States is a hotly debated topic as groups who either support or oppose logging argue over its benefits and negative effects.
Trees were supposed to be the urban jungle's salvation -- but a new study published in the journal Environmental Science & Technology suggests otherwise. Trees might actually make summer air ...
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Regarding the effects of afforestation on long-term carbon stocks and carbon sequestration these decrease when trees are less than 5 years old and increase quickly thereafter. [86] This means trees from monoculture planting that do not survive never reach full potential for carbon sequestration to offset China's carbon output.
Radial annual growth is an integrative index of tree physiological response to environmental variation. Working with Norway spruce , which can be expected to behave in some respects similarly to white spruce, Misson et al. [ 1 ] showed that a reduction in stand density alters the classical climate–growth relationship.